Question

find the area of sector whose length and radius is 10 cm and 5 cm​

Answer 1

Answer:

Length of an arc subtending an angle θ=

360

θ

×2πR where R is the radius of the circle.

So, 10=

360

θ

×2×

7

22

×5

θ=114.45

0

Area of a sector of a circle of radius 'r' and angle θ=

360

θ

πr

2

Hence, area of the sector of the circle =

360

114.45

×

7

22

×5×5=25cm

2