Embibe Experts Solutions for Chapter: Areas Related to Circles, Exercise 1: Bihar Board-2020

The radius of a circle with area $38.5 {\mathrm{cm}}^2$ is

Find the area of a quadrant of a circle if its circumference is $44 \mathrm{cm}$

The diameter of a circle with area $64\mathrm{\pi } {\mathrm{cm}}^2$ is

The circumference of a circle is increased from $2\mathrm{\pi } \mathrm{to} 4\mathrm{\pi }$, its area will be

Find the area of a quadrant of a circle if its perimeter is $25 \mathrm{cm}$.