Question

Work out the area of the circle if the diameter is 9m give the answer to 2 dp

Answer 1

63.62cm^2

Explanation:

Area circle = πr^2

π x 4.5^2 = π 20.25

= 63.6172512352

= 63.62cm^2

Answer 2

63.62m2

Explanation:

Area is given by: πD²/4

Where D(diameter)=9m

Area=π×9²/4

Area=63.617m²

In two Decimal places it will be 63.62m²