No products in the cart.

A circle has a area which …

CBSE, JEE, NEET, CUET

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

A circle has a area which is 100 times of another circle what is the ratio of their circumferences
  • 2 answers

Preeti Dabral 1 year, 1 month ago

{tex}\begin{aligned} & \mathrm{A}_1=100 \mathrm{~A}_2 \\ & \Rightarrow \frac{\mathrm{A}_1}{\mathrm{~A}_2}=100 \\ & \Rightarrow \frac{\pi \mathrm{r}_1^2}{\pi \mathrm{r}_2^2}=100 \end{aligned}{/tex}

{tex}\begin{aligned} & \Rightarrow \frac{\mathrm{r}_1}{\mathrm{r}_2}=10 \\ & \text { So, } \frac{\mathrm{c}_1}{\mathrm{c}_2}=\frac{2 \pi \mathrm{r}_1}{2 \pi \mathrm{r}_2} \\ & =\frac{\mathrm{r}_1}{\mathrm{r}_2}=\frac{10}{1} \end{aligned}{/tex}

Aadarsh Kumar Singh 1 year, 1 month ago

Pratush kya tum dayanand me study karte the
http://mycbseguide.com/examin8/

Related Questions

(-55)+(78)-(777)
  • 0 answers
2+000000
  • 4 answers
1 upon 2 multiply by 11 upon 4
  • 0 answers
Chapter 1 integer
  • 2 answers
Chapter 1 try this solution
  • 0 answers
(-5)÷3
  • 1 answers
2×(-5+6)=?
  • 5 answers
-53+........ =-53
  • 4 answers

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Download myCBSEguide App