Question

8. Find the area of a circle whose diameter is
(a) 28 cm (b) 1.4m (c) 56 m​

Answer 1

Answer:

area of a circle= d×22/7

(a)28×22/7

= 4×22

=88 cm

(b)140×22/7

=20×22

=440cm= 4.4m

(c)56×22/7

= 8×22

= 176m

Answer 2

Answer:

b) area of circle=22/7x1.4/2

=22/7x0.7

=2.2m