Question

Ava draws a circle with a radius of 4cm. Elliana draws a circle with a diameter of 6 cm. without calculating, whose circle has the greater area? explain.

Answer 1

Elliana's circle with a radius 4 has a greater area

Explanation:

The area of a circle is given by πr²

Area is directly proportional to the square of the radius

A ∝ r²

So the greater the radius, the greater the area

Hence, Elliana's circle has a greater area