Embibe Experts Solutions for Chapter: Geometry, Exercise 3: Circles

The area of the biggest circle, which can be drawn inside a square with a side of $21 \mathrm{cm}$. (Take $\pi =\frac{22}{7}$)

In a circle, if $\mathrm{PQ}$ is the diameter of the circle and $\mathrm{R}$ is on the circumference of the circle such that$\angle \mathrm{PQR}=30°$ then $\angle \mathrm{RPQ}=?$

The diameter of a circle is $R^3$, the area of the circle is:

If a chord of a circle of radius 5 cm is a tangent to a circle of radius 3 cm, both the circles being concentric, then the length of the chord is :

There are two circles of different radii. The Area of a square is, $196$ $sq.cm$, whose side is half the radius of the larger circle. The radius of the smaller circle is three-seventh that of the larger circle. What is the circumference of the smaller circle?

What is the area of a circle whose circumference is $176 cm$?

There is a circular ground whose area is $246400 sq. m$. If a person runs at the speed of $14.08 m/s$, then how much time will he take to complete the circle?

Two circles touch each other externally at $P$. $AB$ is a direct common tangent. Whose touch are $A$ and $B$. If $\angle PAB=35°$, then $\angle ABP$ is: