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A circle is inscribed in a quadrilateral ABCD touching its sides AB,BC,CD,AD at P,Q,R and S respectively. If the radius of the circle is 10 cm,BC=38 cm,PB=27 cm and AD⊥CD, then find the length of CD. And perimeter of the quadrilateral abcd

Posted by Akash Oraon 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Vivek Prajapati 2 years ago

Akash your question is best. I gave you the answer of this few time later.

ANSWER

Prove that √3 is irrational no.

Posted by Priyanshu Sahu 2 years ago

CBSE > Class 10 > Mathematics

3 answers

Priya Mahajan 2 years ago

On contrary, let's assume √3 is rational So we can write it as of p/q where q is not equal to zero. Suppose p and q have a common factor other than 1, so on dividing it by that factor we get √3 = a/b , where a and b are coprime. So a = √3b -----(I) Squaring both sides, we get, a^2= 3b^2 So a^2 is divisible by 3 => a is divisible by 3 => a =3c Substitute in (i), we get, 3c=√3b => 9c^2= 3b^2 => 3c^2= b^2 => b^2 is divisible by 3 So b is divisible by 3 So, a and b have at least 3 as common factor But this contradicts that a and b are coprime So our assumption is wrong So √3 is irrational.

Saraswati Kumari 2 years ago

Yes it is irrational

Simran Singh 2 years ago

Yes it's a irrational number

ANSWER

Formula for SN is ?

Posted by Muthu Siva Pradeeban 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Naresh Yadav 2 years ago

Plumbum

Omya Aryan 2 years ago

N/2[2a+(n-1)d] OR N/2(a+l)

ANSWER

If x = 1/√3-1 then find the value of 4x cube+2x saqure-8x-3

Posted by Khushi Choudhary 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Priya Mahajan 2 years ago

-3√3/2 + 13/3

ANSWER

If sintheta +costhetha=

Posted by Tanisha Vishnoi 2 years ago

CBSE > Class 10 > Mathematics

4 answers

Saraswati Kumari 2 years ago

Cot theta

Muthu Siva Pradeeban 2 years ago

Cot theta

Omya Aryan 2 years ago

1

Sushila Thakur 2 years ago

Tantheta

ANSWER

Find x and y : 5/x-1 + 1/y-2 = 2 ; 6/x-1 - 3/y-2 = 1.

Posted by Krishna Saxena 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Priya Mahajan 2 years ago

x is 14/5 and y is 5/7

ANSWER

Find those points on x-axis, each of which is at a distance of 5 units from the point A(5, -3).

Posted by Samarveer Singh 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Preeti Dabral 2 years ago

Let the required point on the x-axis be P(x, 0). Then,
PA = 5 {tex}\Rightarrow{/tex}PA² =25
{tex}\Rightarrow{/tex} (x - 5)² + (0 + 3)² = 25
{tex}\Rightarrow{/tex} x²-10x + 25 + 9 =25 {tex}\Rightarrow{/tex}x² - 10x + 9 =0
{tex}\Rightarrow{/tex} x²- x - 9x + 9 = 0 {tex}\Rightarrow{/tex} x(x -1) -9(x - 1)=0
{tex}\Rightarrow{/tex}(x - 1) (x -9) =0 {tex}\Rightarrow{/tex} x - 1 =0 or x - 9 =0
{tex}\Rightarrow{/tex} x = 1 or x = 9.

ANSWER

Find the probability of getting a head when a coin is tossed once.Also find the probability of getting a tail

Posted by Prashant Majhi 2 years ago

CBSE > Class 10 > Mathematics

4 answers

Lengend Gaming 2 years ago

1/2

Bhoomi Mandoliya 2 years ago

1/2

Divya Jeph 2 years ago

1/2

Harpreet Kaur Harpreet 2 years ago

1by 2

ANSWER

Prove that 1/✓2 is an irrational no.

Posted by Vansh Aggarwal 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Rajat Singh 2 years ago

Hello dost We can do this by using contradiction We will prove that it is not rational then it will be irrational Let it be rational 1/√2 = p/q √2 = q/p Since b and a are integers, b/a is a rational number and so, √2 is rational. But we know that √2 is irrational. So, our assumption was wrong. Therefore, 1/√2 is an irrational number.

ANSWER

Sum of areas of two square is 468 m square if the difference of their perimeter is 24 m find the side of the two square

Posted by Rewati Raman 🤓🤓🤓 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Bhoomi Mandoliya 2 years ago

314%4

Alok Kumar 2 years ago

314 %4

ANSWER

If x tan45 sin30=cos30 tan30 then x is equal to

Posted by Ananya .K.G 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Maira Khanna 2 years ago

xtan45 0 .cot60 0 =sin30 0 .csc60 0 ⇒x.1. 3 1 = 2 1 × 3 2 ⇒x=1 Hence, the answer is 1.

ANSWER

Find the sum of the series 5+7+9+10+13+13+17+16+.......... to 60 terms?

Posted by Shally Bangarh 2 years ago

CBSE > Class 10 > Mathematics

3 answers

Bhoomi Mandoliya 2 years ago

Sn=n/2(2a+(n-1)d here a=5 d 2 so = 60/2( 2x5+60-1) 2=30(10+118) = 30x 128=3840

Vivek Prajapati 2 years ago

Pahale d check Karo sahi hai ki nahi

Ashish Sparsh 2 years ago

As Sn=n/2(2a+(n-1)d) Here, a=5 d=7-5=2 So, S⁶⁰=60/2(2×5+(60-1)2) =30(10+118) =30×128 =3840

ANSWER

Hcf of 420

Posted by Ansh Raghuvanshi 2 years ago

CBSE > Class 10 > Mathematics

3 answers

Bhoomi Mandoliya 2 years ago

2x2x3x7x5

Yashasvi Shringi 2 years ago

2×2×3×7×5

Sristi Singh 2 years ago

2 x 2 x 3 x 7 x 5

ANSWER

In figure ABC right triangle right angle at a semicircles are drawn on AB AC and BC BC as a diameter find the area of shaded reason

Posted by Anamika Yadav 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Sandeep Tiwari 2 years ago

Area of triangle 1/2×bc×ab-1/2πrsquare

Sandeep Tiwari 2 years ago

Area of triangle 1/2×bc×ab

ANSWER

Midpoint formula

Posted by Siddharth Tk 2 years ago

CBSE > Class 10 > Mathematics

4 answers

Phur Lhamu Sherpa 2 years ago

Upper limit+lower limit 2

Mohd Atif Idrisi 2 years ago

X2 + X1/2 & Y2 + Y1/2

Vivek Prajapati 2 years ago

x2 + X1 divided by 2

Gaurav Kumar 2 years ago

1+2

ANSWER

Find the sum of 0._68 +0._73

Posted by Anamika Sharma 2 years ago

CBSE > Class 10 > Mathematics

3 answers

Bhoomi Mandoliya 2 years ago

,0.141

Lucky Keshari 2 years ago

O.141

Vivek Prajapati 2 years ago

0.141

ANSWER

2/3 cosec^2 58-2/3cot58 tan32-5/3 tan13 tan37 tan45 tan53 tan77=5

Posted by Naine Keer 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Juber Pathan 2 years ago

Hi

ANSWER

Hii....😇

Posted by K_Hushii 🍁 2 years ago

CBSE > Class 10 > Mathematics

4 answers

Shlok Patel 2 years ago

Hii

Juber Pathan 2 years ago

1 quiction help

Deepanshu Baisla 2 years ago

Hlo

Suswant Kumar 2 years ago

Hlo

ANSWER

Chapter 5 exercise 5.1 4 part 2 sum

Posted by Sahajpreet Kaur 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Geetdarshan Kashyap 2 years ago

d=1/2 and three more terms are 4,9/2,5.

ANSWER

date 6 PQ is a tangent from an external point P2 circle with centre o and opaque cuts the circle at t and q or is a diameter if angle p0r = 13 and s is a point on the circle find angle 1 + angle 2

Posted by Abhijeet Kanaujia 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Ankit Class 2 years ago

Re write the question properly

ANSWER

A girl on a ship standing on a wooden platform which is 50m

Posted by Kavya Marathe 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Vicky Ronghang 2 years ago

Mention three results of swadeshi movement

Vivek Prajapati 2 years ago

Write complete question

ANSWER

What Happens to Value of tan o when o increases from 0° to 0°

Posted by Yatri Patel 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Parv Jain 2 years ago

Nothing

ANSWER

Chapter 10 10.1 class 6

Posted by Piyush Kumar Singh 2 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Chapter 10 10.1

Posted by Piyush Kumar Singh 2 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The radii of two Circles are 19cm and 9cm Respectively find the radius of the circle which has circumference equal to the sum of the circumference of the two circle

Posted by Arpita Singh 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Bhoomi Mandoliya 2 years ago

28cm

Vivek Prajapati 2 years ago

2πr=2π19+2π9. 2πr=2π(19+9) r=2π(28)/2π Ar =28cm

ANSWER

If a=5+2√6 and b=1/a ,then find the value of a^2+b^2

Posted by N H 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Vivek Prajapati 2 years ago

98

ANSWER

If alpha and beta are the zeroes of the polynomial 4x²+3x+7, then 1/alpha +1/beta is equal to

Posted by Sukhmandeep Kaur 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Vivek Prajapati 2 years ago

-3/7

Account Deleted 2 years ago

1/28

ANSWER

What 34-³⁴

Posted by Raj Veer 2 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If 3x= cosecxtheta and 3/x= cot theta then find 3[xsquare- 1/xsquare-]

Posted by Varad Patil 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Vibha .. 2 years ago

Cosec¤+cot¤=3x +3/x ---(i) Cosec¤-cot¤=3x+3/x ---(ii) Multiply corresponding sides of (i)and( ii) Cosec^2-cot^2=3×3(x^2 -1/x^2) 1/3= 3(x^2-1/x^2)

ANSWER

The length of the minute hand of a clock is 17.5cm.Find the area swept by the minute hand in 15 minutes

Posted by Banna Boy 2 years ago

CBSE > Class 10 > Mathematics

3 answers

Ankit Class 2 years ago

240.52

Vivek Prajapati 2 years ago

In place of 7 we put 6

Vivek Prajapati 2 years ago

240.725

ANSWER

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