Question

0.21. Radii of the circles are given below, find their areas.
1) 28 cm
solution:
Here r = 28 cm.
Area of the circle = zar2
27
x 28
22
* 28
784
· Area of the circle = 2464 sq.cm.
2) 21 cm
(3) 4.2 m
Solution: dula of Ciucle = Tip? Solution:
= 22 x 21²​

Answer 1

Step-by-step explanation:

r=28cm

Area of circle =πr^2

=22/7*28*28

=88*28

=2464cm^2