Question

Which is the area of a circle with a diameter of 7 units? (use 3.14 for pi)​

Answer 1

The area of circle = πR ^2

And diameter = 7 units

By interchanging d in R =d/2 = R =7/2 = 3.5

Explanation:

πR ^2 =3.14 x (3.5)^2

=3.14 x 3.5 x 3.5

=38.465 (unit)^2 Answer

Hope it's help ^_^