In the given Fig. if radius of circle is 3 cm. Find the permeter of `DeltaABC`

In the given fig.find the radius of the circle.

If radius of a circle is 7 cm. Then find the diameter of a circle.

In the fig. fourth quadrant of a circle is OACB where O is the centre of the circle and radius of the circle is 3.5 cm. Find the area of fourth quadrant of the circle.and find the area of shaded portion of the part ADBC if OD=2cm (pi=22/7)

The area enclosed between two concentric circles is 770 sq. cm given that the radius of the outer circle is 21 cm. Find the radius of the inner circle.

In fig. OAPBO is a sector of a circle of radius 10.5 cm. Find the perimeter of the sector.

The figure shows a circle of diameter AB and radius 6.5 cm. If chord CA is 5 cm. long, find the area of DeltaABC

The sum of circumferences of two circles is 132 cm. If the radius of one circles is 14 cm, find the radius of the other circle.

In the given fig. PQ is a chord of length 6 cm and the radius of the circle is 6 cm. TP and TQ are two tangents drawn from an external point T. Find angle PTQ .

Find the area of a circle with radius 3.5 cm.

In Fig. 15.76, O is the centre of circle of radius 28 cm. Find the area of minor segment A S B . (FIGURE)