CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

Given Pr=4cm RQ=5cm To find :Area of shaded region Proof:we know that Inner radius =Ab+Bc-Ac —————— 2 By pythagoares therom Hyp sq= sum of two squares RQsq=RPsq+PQsq 5sq=4sq =3 therefore We know that Inner radius = Rp+pQ-rq 4+3-5=2 The inner radius = 1 cm Ar.of shaded region= Ar.of sq-Ar.of circle = 1/2×3×4-πR² = 6-22\7×1 =6-3.14 =3.8 Ar.of shaded region= 3.8

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Find the 9th term from the end (towards the first term ) of the A.P 5,9,13 ........., 185

Posted by Yash Mishra 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Aadya Singh ? 6 years, 1 month ago

The 9th term from the end is 153.

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In the figure, A,B and C are point on OP OQ, and OR respectively such that AB// PQ and AC// PR. Show that BC// OR

Posted by Yash Mishra 6 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

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In triangle ∆ABC,DE is parallel to BC. If AD = 12.4 cm DB = 6.2 cm, AE =2x and EC = 6x - 2. Find the value of x

Posted by Yash Mishra 6 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Aadya Singh ? 6 years, 1 month ago

By B.P.T , we know that, AD/DB = AE/EC => 12.4/6.2 = 2x/(6x-2) => 124/62 = 2x/(6x-2) => 2 = 2x/(6x-2) => 12x-4 = 2x => 12x-2x = 4 => 10x = 4 => x = 4/10 => x = 0.4

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Yash Mishra 6 years, 1 month ago

Full solutions ke sath

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Aadya Singh ? 6 years, 1 month ago

The value of x is 0.4

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Show that in a right angle triangle, the square of the hypotenuse is equal to the sum of squares of the other sides

Posted by Yash Mishra 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Aadya Singh ? 6 years, 1 month ago

It's given in ncert on page no.145 (theorem 6.8)

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Full book formula of class 10

Posted by Shirish Verma 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Supriya Sharma 6 years, 1 month ago

You can buy UPHAR Language of Mathematics NCERT and CBSE pattern

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x-2x+15=0

Posted by Harikrishna Harikrishna 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Prince Raj 6 years, 1 month ago

x²-3x-5x+15=0 x(x-3)-5(x-3)=0 (x-3)(x-5)=0 x-3=0 or x-5=0 x=3 or x=5

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Aditya Yadav 6 years, 1 month ago

The mid point of the line segment joining the point (-5,7) and(-1,3

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Prove that tangent drawn at the end of a diameter of circle are parallel

Posted by Adarsh Raj 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Prince Raj 6 years, 1 month ago

The angle between tangent and the contact point is 90degree in each side. So the sum of both the angle is 90+90=180 Hence,tangents are parallel to each other(by co-interior angles) sorry bhai ye question text mein clearly nhi bata sakta agar phir bhi problem hai to mere youtube channel dronstudy mein dekh sakte ho...?

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Chapter 13 all formulae

Posted by Avdhi Jain 6 years, 1 month ago

CBSE > Class 10 > Mathematics

5 answers

Aadya Singh ? 6 years, 1 month ago

For cone, Volume= 1/3(πr^2h) , CSA = πrl , where l=√(h^2+r^2) , TSA = πr(r+l).

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Aadya Singh ? 6 years, 1 month ago

For cylinder, Volume = πr^2h , CSA = 2πrh , TSA = 2πr(r+h).

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Aadya Singh ? 6 years, 1 month ago

For cuboid, Volume = l×b×h , C.S.A = 2(l+b)×h , T.S.A = 2(lb+bh+hl) , Diagonal= √(l^2+b^2+h^2).

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Aadya Singh ? 6 years, 1 month ago

For cube - Volume = (a)^3 , Curve surface area = 4a^2 , Total surface area= 6a^2 , Diagonal = √3×a

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Deepanshu Sindhu 6 years, 1 month ago

Area Rectangle l*b

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the cubic polynomial fx is such that the coefficient of x cube is -1 and 0 the k are 1,2 and K if fx has a reminder of 8 and divided by x minus 3 find the value of k and the remainder when fx is divided by x+3

Posted by Zeba Fatima 6 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

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If angle B and angle Q are acute angle such that sinB =sinQ then prove that angle B is equal to angle Q

Posted by Ruchi Dhiman 6 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

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9999999999999+51235546615643154684

Posted by ?Urstruley Ashu? 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Sagar Rana 6 years, 1 month ago

51235556615643154683

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A point P is at a distance from the point (2,3). Find the Coordinates of point P, if its abscissa is twice its ordinate

Posted by Arya Magade 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Aadya Singh ? 6 years, 1 month ago

At what distance the point P is from the point (2,3) ........?

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Why radius is only perpendicular why it cant make 60 degree

Posted by Aditya Narayan Dixit 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Yash Sharma 6 years, 1 month ago

because radius is perpendicular to the tangent

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Why is radius of circle is perpendicular to tengent

Posted by Vansh Baheti 6 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

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Two composite number

Posted by Priyanshu Kesharwani 6 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Rishi Thakur 6 years, 1 month ago

4,6

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Account Deleted 6 years, 1 month ago

4,9

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Aadya Singh ? 6 years, 1 month ago

10 and 12

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Soumya Singh 6 years, 1 month ago

6,8

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What time do you think

Posted by Vikash Kumar Yadav Yadav 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Prachi Yadav?? 6 years, 1 month ago

What about

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Prove pythagoreas theorm

Posted by Deepak Sangwan 6 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Gaurav Seth 6 years, 1 month ago

Pythagoras Theorem

Statement: In a right angled triangle, the square of the hypotenuse is equal to the sum of squares of the other two sides.

Given: A right triangle ABC right angled at B.

To prove: AC² = AB² + BC²

Construction: Draw BD AC

Proof :

We know that: If a perpendicular is drawn from the vertex of the right angle of a right triangle to the hypotenuse, then triangles on both sides of the perpendicular are similar to the whole triangle and to each other.

ADB ABC

So, (Sides are proportional)

Or, AD.AC = AB²... (1)

Also, BDC ABC

So,

Or, CD. AC = BC²... (2)

Adding (1) and (2),

AD. AC + CD. AC = AB² + BC²

AC (AD + CD) = AB² + BC²

AC.AC = AB² + BC²

AC² = AB² + BC²

Hence Proved.

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Aadya Singh ? 6 years, 1 month ago

It's given in ncert on page no. 145. ( theorem 6.8)

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Aadya Singh ? 6 years, 1 month ago

In a right angled traingle, hypotenuse square is equal to the sum of perpendicular square and base square.

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⛩️Singh Empire? (Believe In Study)✍️???? 6 years, 1 month ago

Prefer ncert book

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2p+1

Posted by Sahil Aggarwal 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

⛩️Singh Empire? (Believe In Study)✍️???? 6 years, 1 month ago

???

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19990897654321

Posted by Mayank Raj 6 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Mayank Raj 6 years, 1 month ago

Are you all in 10

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Mayank Raj 6 years, 1 month ago

That was a time pass

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Prachi Yadav?? 6 years, 1 month ago

Is that your roll no for board

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Shivam Mishra 6 years, 1 month ago

hii myank ye kya he

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Find all the possible values of x for which the distance between the point a (X ,- 1 )and b (5,3) is 5 units

Posted by Sumedha Gupta 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Sumedha Gupta 6 years, 1 month ago

Thanks bhai

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Anshul Sahu 6 years, 1 month ago

Distance=5 root((x-5)^2 +(-1-3)^2) =5 squaring on both sides (x-5)^2 + 16 =25 x^2 +25-10x=25-16 x^2-10x+25=9 x^2-10x+25-9=0 x^2-10x+16=0 x^2-8x-2x+16=0 x(x-8)-2(x-8)=0 (x-8)(x-2)=0 x-8=0, x-2=0 x=8,2 x=2,8 is answer

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what is 2-2

Posted by Aryan Jadile 6 years, 1 month ago

CBSE > Class 10 > Mathematics

6 answers

Arya Magade 6 years, 1 month ago

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Aadya Singh ? 6 years, 1 month ago

2×7×4×7×4×9×3×0

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Jai Kathuria 6 years, 1 month ago

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Kunal Rajan 6 years, 1 month ago

????

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Suhana.. .. ? #Alone 6 years, 1 month ago

0..? itna tough question

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⛩️Singh Empire? (Believe In Study)✍️???? 6 years, 1 month ago

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If ap is 3:1

Posted by Xtylish Jyotish 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Apurva Vaidya 6 years, 1 month ago

What is the question?? ?

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Math Basics questions in 2020 board exam

Posted by Rohit Chettry 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Arya Magade 6 years, 1 month ago

See previous paper

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⛩️Singh Empire? (Believe In Study)✍️???? 6 years, 1 month ago

Like a previous year question paper...

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The center of a circle is ( x-2,x-1).findx if the circle passes through (2,-2)and(8,-2).

Posted by Pradipta Prusty 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Apurva Vaidya 6 years, 1 month ago

Given that, a circle passes through points ( 2, -2 ) and ( 8, -2 ). This implies that the circle's outer circumference passes through these points. We know that, the distance from circle to any point on the circumference is equal to each other as it is called as radius. So distance between both the points from the center is equal. So calculating distance from center for point ( 2, -2 ) we get, => √ ( x + 2 - 2 )² + ( x - 1 - ( -2 ) )² = Radius => √ ( x + 0 )² + ( x - 1 + 2 )² = Radius => √ x² + ( x + 1 )² = Radius ... ( 1 ) Now calculating the distance between Center to ( 8, -2 ) we get, => √ ( x + 2 - 8 )² + ( x - 1 - ( -2 ) )² = Radius => √ ( x - 6 )² + ( x - 1 + 2 )² = Radius => √ ( x - 6 )² + ( x + 1 )² = Radius ... ( 2 ) Equating the LHS of ( 1 ) and ( 2 ) we get, => √ x² + ( x + 1 )² = √ ( x - 6 )² + ( x + 1 )² Squaring on both sides, we cancel the roots. Hence we get, => x² + ( x + 1 )² = ( x - 6 )² + ( x + 1 )² ( x + 1 )² gets cancelled and we get, => x² = ( x - 6 )² => x² = x² - 12x + 36 => x² - x² + 12x = 36 => 12x = 36 => x = 36 / 12 = 3 Hence the value of x is 3. Centre coordinates: ( 3 + 2, 3 - 1 ) => Centre Coordinates: ( 5, 2 ) Read more on Brainly.in - https://brainly.in/question/6595393#readmore

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A solid sphere of radius r is method and cost into the shape of a solid cone of height r the radius of the base a R

Posted by Piyusha Roy 6 years, 1 month ago

CBSE > Class 10 > Mathematics