Question

find the area of the sector of a circle of radius 5 cm,if the corresponding arc length is 3.5 cm.

Answer 1

Answer:

the area of sector is 8.75

Answer 2

radius= 5cm

corresponding arc= 3.5cm

$theta$ / 360 ×2πr= 3.5

theta/ 360= 3.5×1/2 ×7/22 ×1/5

                 =  0.7× 7 / 2×22

theta= 441/ 11

area of sector= $theta$ / 360 ×πr²

                     =  35/4

                     = 8.75cm²