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

We know that tangent are drawn to the point of contact is perpendicular to its radius so parellel tangents have each 90 deg. Angle but these are also the alternate interior angle so lines are parallel

1Thank You

Honey ??? 6 years, 10 months ago

Just show the alternate angles are equal means 90 deg. then the line will be parallel

1Thank You

ANSWER

If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points the other two sides are divided in the same ratio.

Posted by Vibhav Jha 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Rishab Jain 6 years, 10 months ago

It is thales theorem and also known as basic proportionality theorem(BPT). You see in your ncert maths book

1Thank You

Ankit Jaat 6 years, 10 months ago

Its bpt..... Krna kya h.. Question hii incomplete h

1Thank You

Honey ??? 6 years, 10 months ago

In short words it is thales theorem

1Thank You

ANSWER

Which stream should i choose after 10th

Posted by Ankit Jaat 6 years, 10 months ago

CBSE > Class 10 > Mathematics

6 answers

Bhuvnesh Rajpurohit 6 years, 10 months ago

you should go in football

1Thank You

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

No maths or arts

1Thank You

Ankit Jaat 6 years, 10 months ago

Are you sure Vishaka

1Thank You

Vishakha Singh? 6 years, 10 months ago

Then choose commerce phe

1Thank You

Ankit Jaat 6 years, 10 months ago

Nothing... My career is in sports

0Thank You

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

Which subject you like most

2Thank You

ANSWER

The probability of selecting a rotten apple randomly from a heap of 900 apples is 0.18. What is the number of rotten apples in the heap

Posted by Sushant Chaubey 6 years, 10 months ago

CBSE > Class 10 > Mathematics

5 answers

Sushant Chaubey 6 years, 10 months ago

Let the number of rotten apples be x. P(rotten apple) = x/900 x/900 = 0.18/1 x=900×0.18 x = 162 Hence, the number of rotten apples in the heap is 162.

1Thank You

Rishab Jain 6 years, 10 months ago

162 Apple

1Thank You

Satys Singh 6 years, 10 months ago

162

1Thank You

Ankit Jaat 6 years, 10 months ago

162 ?

2Thank You

Vishakha Singh? 6 years, 10 months ago

162

3Thank You

ANSWER

Is all questions come from n.c.e.r.t. books only in mathematics? Plz answer this

Posted by Shashwat Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Bhuvnesh Rajpurohit 6 years, 10 months ago

80% ncert 20% from outsidw

0Thank You

Rishab Jain 6 years, 10 months ago

No.but 70percent

0Thank You

Ankit Jaat 6 years, 10 months ago

I got cbse sample papers... Anyone want that

1Thank You

Vishakha Singh? 6 years, 10 months ago

Most of the ques. come from NCERT but not all....as far as I know....but for sure the methods to solve/prove those ques. is based on NCERT if we are able to understand ques.

2Thank You

ANSWER

solve pair of linear equation:(a-b)x +(a+b)y=a*a-2ab-b*b And (a+b)(x+y)=a*a+b*b

Posted by Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the sum of first 40 positive integers divisible by 6.

Posted by Vanshika Mehta 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Rishab Jain 6 years, 10 months ago

4920

1Thank You

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

AP=6,12,................,240 n=40,d=6,l=240 Sn=n/2(a+l) Sn=40/2(6+240) Sn=20(246) Sn=4920. Ans..........

0Thank You

Ankit Jaat 6 years, 10 months ago

andFindtheratiooftheareaof

0Thank You

Puja Sahoo? 6 years, 10 months ago

4920......

2Thank You

ANSWER

In the right ? ABC, angle A =90 and AD perpendicular bc. Then BD➗ DC

Posted by Gautav Barman 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Rishab Jain 6 years, 10 months ago

Matlab

1Thank You

Puja Sahoo? 6 years, 10 months ago

Shayad question adha hai..........??

3Thank You

ANSWER

X square - 2 x minus 8

Posted by Utkarsh Patel 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Dhirendra Behera 6 years, 10 months ago

The value of x can be (-2) and 4.

0Thank You

Yogita Ingle 6 years, 10 months ago

x² - 2x - 8
= x² - 4x + 2x - 8
= x(x - 4) + 2 ( x - 4)
= ( x + 2) (x - 4)

1Thank You

ANSWER

If one zero of quadratic polynomial x square minus x minus into 2 plus 2k is 4 find the value of k

Posted by Abhishek Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Rita Gokani 6 years, 10 months ago

X^2-x-(2+2k)=0 (4)^2 - 4-(2+2k)=0 16-4-2-2k=0 10-2k=0 -2k=-10 K=5

1Thank You

ANSWER

Two water taps together can fill a tank in 9 3/8 hours. The tap of larger diameter takes 10 hours less than the smaller one to fill the tank separately. Find the time in which each tap can separately fill the tank.

Posted by Shreenidhi Karkun 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

For small tap 18 hours and for big tap 12hours

2Thank You

Rita Gokani 6 years, 10 months ago

Let the time taken by smaller tap be xhrs And larger =x-10hrs ATQ 1/X +1/X-10=8/75 SOLVE...

1Thank You

S N Mahato 6 years, 10 months ago

Let time taken by the largest tap to fill the tank completely be x hours Then volume it can fill in 1 hour is 1/X Then volume it can fill in 75/8 hours is75/8x Then time taken by smaller tab to fill the tank completely is X + 10 hours Volume it can fill in 1 hour is 1/X + 10 Then volume it fill in 75/8 hours is 75 / 8 ( X + 10) Tank filled by the largest tab + tank filled by smaller tab = 1 A/Q..... 75 / 8X + 75 / 8 (x + 10 )= 1 By calculating this you will get the answer .thank you

1Thank You

ANSWER

ABCD is a square with e,f,g,h as mid point of AB,BC,CD,DA respectively.M is any point inside square such that area of quadrilateral AeMh is 20sq.cm,BeMf is 32sq.cm, DgMh is16sq.cm.Find the area of quadrilateral CgMf.

Posted by Muskan Kumari 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

2+2q+r=5 Find value of q and r

Posted by Tkdf Ghjg 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

2q+r=3 Then value of r=0,1 If r=0 ,then value of q=3/2 If r=1,then value of q=1

1Thank You

ANSWER

Which chapters from maths are enough to practise from ncert

Posted by Soumya Agrawal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Maisha Singh 6 years, 10 months ago

Ncert is main for all other subjects as well... Obviously ncert is enough if u practice each n evry question with all the concepts clear...

2Thank You

Mohammad Amaan 6 years, 10 months ago

I think, all

3Thank You

ANSWER

How to nake linear eq in two variable

Posted by Super Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If m and n are prime positive integers prove that root m + root n is an irrational number

Posted by Aysha Shayan 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Show that the sum of first n even natural numbers is equal to (1+1/n)times the sum of first n odd natural numbers

Posted by Prashant Parihar 6 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

Let S₁ be the sum of the first n even natural numbers.
Then, S₁ = 2 + 4 + 6 + ....+ 2n
{tex}\Rightarrow{/tex} S₁ = {tex}\frac{n}{2}{/tex}[2 {tex}\times{/tex} 2 + (n - 1)2]
{tex}\Rightarrow{/tex} S₁ = {tex}\frac{n}{2}{/tex}[4 + 2n - 2] = n(n + 1) ........(i)
Let the S₂ be the sum of the first n odd natural numbers.
Then, S₂ = {tex}\frac{n}{2}{/tex}[2 {tex}\times{/tex} 1 + (n - 1)2] = n²
From (i),we have, {tex}{/tex} {tex}{/tex}{tex}S_1=n^2(1+\frac{1}{n})=(1+\frac{1}{n})n^2=(1+\frac{1}{n})S_2{/tex}

Therefore, the sum of first n even natural numbers is equal to (1 + {tex}\frac{1}{n}{/tex}) times the sum of the first n odd natural numbers {tex}=(1+\frac{1}{n})S_2{/tex}

0Thank You

ANSWER

A hollow cone is cut by a plane parallel to the base and the upper portion is removed if the curved surface of the remainder is 1 by 9 of the curved surface of the whole cone find the ratio of the line segment in which the altitude of the cone is divided by the plane

Posted by Sreedeep Dev K 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Puja Sahoo? 6 years, 10 months ago

Same, question mere preboard me aya tha bt apne, 1 by 9 of curved surface are, pucha hai, hmara, 8 by 9 th tha

2Thank You

ANSWER

In the given figure PQ and PR are tangents to the circle with Centre O such that angle QPR is equal to 50 degree then find the angle AOC you are

Posted by Shallu Jaiswal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Puja Sahoo? 6 years, 10 months ago

Yupe, bt where is yur fig..........

2Thank You

Anshika / U Can Call Me Alien ???? 6 years, 10 months ago

In the figure form , PQ=PR, Hence it made an isosceles triangle PQR= 180 2Q=180-50 2Q=130 Q=130/2 Q=65 And, Angle OQP=90 In which RQP=65 So, angle OQR=90-65=25 Hence, the angle is 25 HOPE IT HELPS!

3Thank You

Honey ??? 6 years, 10 months ago

Figure kahan hain

1Thank You

ANSWER

I am forgetting the sum very soon what should I do to remember it for a long time

Posted by Guru Kiran Kr 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Honey ??? 6 years, 10 months ago

Which sum

3Thank You

ANSWER

AD is median of triangle ABC, AB2+AC2=148 & AD=7. Find BC.

Posted by Preet Kotiya 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Ashwani Yadav 6 years, 10 months ago

BC = 10 units

0Thank You

ANSWER

If the sum of n terms of an AP is 2n + 5 then prove that aN =4n+3

Posted by Niya Sharma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Madhur Dubey ??? 6 years, 10 months ago

Since,. Sn=2n+5. Therefore,. Sn-1=2(n-1)+5 Or,. =2n+3. We Know that,. An=Sn-Sn-1. Or,. =2n-1-(2n+3). Or,. = -4 Since, value of n donot exist Therefore this donot form any A.P. Please check your question Sn must be 2n²+5

1Thank You

ANSWER

Page 786 of 1971

myCBSEguide

myCBSEguide

Test Generator

CUET Mock Tests

Download myCBSEguide App

All Courses

Other Websites

CBSE Courses

Resources

Corporate

NCERT Solutions

CBSE Sample Papers