Question

The area ( in sq. cm) of a sector whose radius is 18 cm and angle measure is 30° is

Answer 1

Answer:

Find the area of a sector of a circle of radius 18 cm, whose angle measure is 30°.

Answer 2

The sector's area is 84.85 $cm^{2}$.

Given:

The radius of the sector=18 cm

The angle of the sector=30°

To find:

The area of the sector

Solution:

We can calculate the required area of the sector by using the following formula-

The required area of the sector=Angle of the sector/360°×π ×$radius^{2}$

Using the values,

=30°/360°×22/7×18×18

=1/12×22/7×18×18

=22×18×18/12×7

=11×3×18/7

=84.85 $cm^{2}$

Therefore, the sector's area is 84.85 $cm^{2}$.