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??Róyál⛔⛔ ????Himánshú⚡⚡ 6 years, 10 months ago

Gaurav Maurya 6 years, 10 months ago

ANSWER

Find HCF (865,255) using euclid division lemma

Posted by Samrat Kkkkk 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Khushboo Giri 6 years, 10 months ago

Let a=865. b=255 By Euclid division lemma 865=255×3+100 255=100×2+55 100=55×1+45 55=45×1+10 45=10×4+5 10=5×2+0 HCF=5

Harsh Chauhan 6 years, 10 months ago

ANSWER

volume of cone = ...........volume of cylinder

Posted by Ajay Gaur 6 years, 10 months ago

CBSE > Class 10 > Mathematics

5 answers

Ram Kushwah 6 years, 10 months ago

Mr Guar behave like class x student otherwise it looks like

your mind is still like a primary class student.

The person like me will never answer your question

Shabnam Star 6 years, 10 months ago

1/3πr^²h

??Róyál⛔⛔ ????Himánshú⚡⚡ 6 years, 10 months ago

1/3 of cyclinder

Anamika Sharma? 6 years, 10 months ago

πr2h

Ajay Gaur 6 years, 10 months ago

1/3

ANSWER

a circle ha .......... parallel tangenta ?

Posted by Ajay Gaur 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Honey ??? 6 years, 10 months ago

??Róyál⛔⛔ ????Himánshú⚡⚡ 6 years, 10 months ago

Ajay Gaur 6 years, 10 months ago

ANSWER

Find the sum of all multiples of 7 lying between 500 and 900

Posted by Sara Sharma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

??Róyál⛔⛔ ????Himánshú⚡⚡ 6 years, 10 months ago

39900 sum

Yogita Ingle 6 years, 10 months ago

504 , 511 , 518 , ....,889, 896 are multiples of 7 between 500 and 900 and these are in Arithmetic progression .

First term = a = 504 , Common difference = a₂ - a₁= d = 511 - 504 = 7

Let the number of terms = n

Last term ( L ) = 896

We know that ,

a + ( n - 1 )d = L

504 + ( n - 1 ) 7 = 896

Divide each term with 7 , we get

72 + n - 1 = 128

71 + n = 128

n = 128 - 71

n = 57

Anamika Sharma? 6 years, 10 months ago

Calculate?

ANSWER

What is the value of X if the median of the following data is 27.5 ? 24 25 26 x+2 x+3 30 33 37.

Posted by Sandeep Chaudhary 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Khushboo Giri 6 years, 10 months ago

If we will take class interval of h=10 then x=77.5

Khushboo Giri 6 years, 10 months ago

Laa,where is the class interval?

Anamika Sharma? 6 years, 10 months ago

Calculate?

ANSWER

A vessel in the form of hemispherical bowl mounted by a hollow cylinder the diameter is 14 cm and the total height of vessel is 13cm. Find the capacity and inner surface area of vessel

Posted by Ayush Kaushik 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Yogita Ingle 6 years, 10 months ago

Radius = 7 cm

Height of cylindrical portion = 13 – 7 = 6 cm

Curved surface are of cylindrical portion can be calculated as follows:
= 2πrh
= 2 × 22/7 × 7 × 6
= 264 cm²

Curved surface area of hemispherical portion can be calculated as follows:
= 2πr²
= 2 × 22/7 × 7 × 7
= 308 cm²

Total surface are = 308 + 264 = 572 sq cm

Ayush Kaushik 6 years, 10 months ago

Volume kaise nikalenge bhai usme to sirf surface area hai question padh ek baar capacity(volume) of vessel?

Anamika Sharma? 6 years, 10 months ago

Ncert ka ques hai tum solution google se tape lo?

Deepali Rana 6 years, 10 months ago

Please see ncrt

ANSWER

three circles each radius 3.5cm are drawn in such a way that each of them touches the other two . find the area enclosed between these circles

Posted by Vishal Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the area and perimeter of an isosceles right angled triangle, each of whose equal sides measures 10 cm.

Posted by Yash Raj 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 6 years, 10 months ago

Length of each of the equal sides of the isosceles right-angled triangle = a = 10 cm

And. Base = Height = a

Area of isosceles right – angled triangle = 1/2 x Base x Height

The hypotenuse of an isosceles right – angled triangle can be obtained using Pythagoras’ theorem

If h denotes the hypotenuse, we have:
h² = a² + a²

h = 2a2
h = √ 2 a
h = 10 √ 2

Perimeter of the isosceles right angles triangle = 10 + 10 + 10 √ 2 = 20 + 10(1.41) = 20 + 14.1 = 34.1 cm
Area of isosceles right – angled triangle = 1/2 x Base x Height = 1/2 x 10 x 10 = 50 sq. cm

ANSWER

Derive an expression for co-ordinate of centroid of a triangle whose vertices A(x1,y1) , B(x2,y2) and C(x3,y3)

Posted by Ashish Gupta 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If x=2/3 and x=-3 are the roots of ax^2+ bx+ c find a and b

Posted by Nitish Sharma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

a²(b+c)+b²(c+a)+c²(a+b)-2b²c

Posted by Brajesh Kumar Dixit 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 6 years, 10 months ago

a²(b+ c) + b²(c + a) + c²(a+ b) - 2b²c
= a²b + a²c + b²c + b²a + c²a + c²b - 2b²c
= a²b + a²c + b²c - 2b²c + b²a + c²a + c²b
= a²b + a²c - b²c + b²a + c²a + c²b

ANSWER

Find the Roots of the equation x+√x-2=4

Posted by Rohan Munday 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 10 months ago

X + √(x - 2) = 4

√(x - 2) = 4 -x

take square Both sides

x - 2 = 16 -8x + x²

x² -9x +18 = 0

x² -6x -3x +18 =0

x(x -6) -3(x -6) =0

(x -6)(x -3) =0

x = 6 , 3

according to √(x - 2) and (4 -x) ≥0
x≥2 and x ≤4
so, x ≠ 6
only x = 3

ANSWER

In an equilateral triangle prove that the centroid and the circumcentres of the triangle are coincide?

Posted by Kalpana Sahu 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 10 months ago

To prove: In an equilateral triangle prove that the centroid and the circumcentres of the triangle are coincide?

Answer:

ANSWER

Cosα\cosβ=m and cosα\sinβ=n then prove (m^2+n^2)cos^2β=n^2

Posted by Insha Malik 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Sid Singh 6 years, 10 months ago

Put the value of m^2 & n^2

ANSWER

The radius of the ends of a frustum of a cone 45cm height are 28cm and 7cm .find the volumn ,the curved surface area and the total surface area (take-22/7)

Posted by Suyash Sinha 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

An express train takes 1 hour less th mike testing takes 1 hour less than a passenger train to travel 132 M between Mysore and Bangalore without taking into consideration the time they stop and integration if the average speed of the express train is 11 km per hour more than that of the passenger train find the acid average speed of the two trains

Posted by Rashmi Chand 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Chandan Bhandari 5 years, 8 months ago

12mins

ANSWER

places A and B are 80km apart from each other on highway.A car starts from A and another from B at the same time if they move in same direction they meet in 8 hrs and if they move towards each other they meet in 1 hr 20 minute.find the speed of car

Posted by Shibil Ameen 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Purvanshi Yadav 6 years, 10 months ago

Let speed of carA be x km/h Let speed of carB be y km/h Now; acc. to ques. 8x-8y=80 x-y=10 -----(1) 4/3x+4/3y=80 x+y=60 ------(2) On adding eq 1 and 2 we have; 2x=70 x= 35 and from eq. (1) y=25

ANSWER

If the numbers a,b,c,d,e form an A.P., then find the value of a-4b+6c-4d+e

Posted by Kratika Nyati 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the volume of the largest right circular cone that can be cut of a cube whose edge is 14cm (use22/7)

Posted by Bindu Sukumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Kratika Nyati 6 years, 10 months ago

cm^3

Kratika Nyati 6 years, 10 months ago

2156/3

ANSWER

A boat is

Posted by Kaviya Kaviya 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Jitendra Yadav 6 years, 10 months ago

A boat is ????????????????

Priyanshi Khandelwal 6 years, 10 months ago

????? Further question

Drashti Vaish 6 years, 10 months ago

What a boat is..??????

ANSWER

(Sin3A +cos3A )+(sinA cosA )(sinA+cosA )/sinA +cosA

Posted by Sarvottam Maurya 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Rakhi Pal 6 years, 10 months ago

Plz write the whole Question.

ANSWER

Marking scheme of chapter 13 of class 10

Posted by Dalbir Dahiya 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Purvanshi Yadav 6 years, 10 months ago

There are mainly 4 or 3 marks questions come in board exam.

ANSWER

How to justifyconstruction of similiar triangles?

Posted by Aakash Kaushik 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Purvanshi Yadav 6 years, 10 months ago

There is no need to justify construction.

ANSWER

Is there necessary to write steps of construction and their justification in construction chapter questions?

Posted by Khushi Nagar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Khushi Nagar 6 years, 10 months ago

Thanks

Purvanshi Yadav 6 years, 10 months ago

No it is not necessary.

Ayush Sharma 6 years, 10 months ago

Yess it is necessary

Geetanand Yadav 6 years, 10 months ago

Justification to nhi par steps of construction likhna jaruri hai

ANSWER

(a-b) x²+(b-c) x+(c-a), it's roots are equal, then prove that 2a=b+c

Posted by Ashwani Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Aakash Kaushik 6 years, 10 months ago

We know that, If the quadratic equation ax²+bx+c=0 whose roots are equal then it's deteminant is equal to zero. (a-b)x²+(b-c)x+(c-a)=0 Deteminant =0 (b-c)² -4(a-b)(c-a)==0 b²+c²-2bc-4ac+4a²+4bc-4ab=0 b²+c²+4a²+4bc-4ac-4ab=0 b²+c²+(-2a)²+2bc+2c(-2a)+2(-2a)b=0 (b+c-2a)²=0 b+c-2a=0 Therefore, b+c=2a Hence proved. I hope this helps you.