Question

Work out the area of this circle.

Take to be 3.142 and give your answer to 2 decimal places.
11.2 cm

Answer 1

Using the formula for the area of a circle, which is A = πr^2, where r is the radius of the circle, and taking π to be 3.142 and the radius to be 11.2 cm, we have

A = 3.142 × (11.2 cm)^2

A = 3.142 × 125.44 cm^2

A = 394.24 cm^2

Rounding to two decimal places, the area of the circle with a radius of 11.2cm is 394.24 cm^2.