Question

Pls help I am stuck on this question

Answer 1

153.94 cm

Explanation:

a = r^pi squared

r = d/2

7^pi = 21.98

21.98 squared = 153.94 cm

Answer 2

see below

Explanation:

The diameter is 14 cm

The radius is 1/2 of the diameter

r = d/2 = 7cm

We want to find the area

A = pi r^2 where r is the radius

If pi = 3.142

A = 3.142 ( 7)^2

A =153.958 cm^2

If pi = 3.14

A = 3.14 ( 7)^2

A =153.86 cm^2

Depends on the value of pi