Question

Area of sector whose radius 7cm and angle is 72 degree

Answer 1

Answer:

Step-by-step explanation:

Hj

Here angle given 72°

Radius= 7 cm

Area of Sector=(Ф/360)*π*r^2

=(72/360)*22/7*7*7

=30.8

Thanks

Jay Hind

Vande mataram

Answer 2

Answer: The area of sector is 30.8 cm²

Step-by-step explanation:

Given : Radius ; r = 7 cm

Angle, ∅= 72°

Now as we know the area of a sector is given by

$Area = \pi r ^2 \dfrac{\theta}{360^\circ} \\\\= \dfrac{22}{7}  \times 7 \times 7 \times \dfrac{72^\circ}{360^\circ}= 22 \times 7 \times \dfrac{1}{5} = 30.8 cm^2$

Hence, the area of sector is 30.8 cm²