Question

Find the area of base of cylinder of radius 7 cm

Answer 1

We have,

r = 7 cm

so, its area

= π x r x r

= 22/7 x 7 x 7

= 22 x 7

= 154 cm ^2

Answer 2

We have ,
radius = 7 cm

therefore the area is,
=
$\pi \times r \times r \\ = \frac{22}{7} \times 7 \times 7 \\ \\ = 22 \times 7 \\ = 154$

154 cm2 is the answer