Question

I need help with this problem if do thank you a lot

Answer 1

circumference of the circle is 25.13 cm

area of the circle is 50.27 square cm

Explanation:

The formula for the circumference of a circle is C = 2πr.

Using this formula, we can find the circumference of the circle with radius 4cm:

C = 2πr

C = 2π(4)

C = 8π

C = 25.13

So the circumference of the circle is 25.13 cm (rounded)

The formula for the area of a circle is A = πr^2.

Using this formula, we can find the area of the circle with radius 4cm:

A = πr^2

A = π(4^2)

A = 16π

A = 50.27

So the area of the circle is 50.27 square cm (rounded)