A) 6.02 cm
B) 5.02 cm
C) 4.02 cm
D) 5.58 cm
Correct Answer: A
Solution :
Given, circumference of a circle |
= Diameter of a circle + 25.8 |
\[\Rightarrow \,\,\,2\pi r=2r+25.8\] |
\[\Rightarrow \,\,2r\left( \pi -1 \right)=25.8\Rightarrow \left( \pi -1 \right)r=129\] |
\[\Rightarrow \,\,\,r=129\times \frac{7}{15}\Rightarrow r=6.02\,cm\] |
You need to login to perform this action.
You will be redirected in
3 sec