Question

Exercise 16.5
Find the area of the circles whose radii are given below
(a) 21 m
(b) 32 mm
2 Find the area of the circles whose diameters are given below
(a) 28 m
(b) 40 cm​

Answer 1

Answer:

a) 126 cm.sq

Step-by-step explanation:

a) area of the circle =πr^2

= π=22÷7

= 22÷7×21×21

= 22×3×21

= 126 cm.sq