Question

This semicircle has a diameter of 5 meters.

What is the area of this figure?

Use 3.14 to for pi.

Enter your answer as a decimal in the box. Round your answer to the nearest hundredth.

Answer 1

Area of semicircle is given by:

`A_sc = (1)/(2) \pi r^2`

r is the radius, and we are given the diameter. Radius is half the diameter, so it's 2.5m. Let's plug that into the formula (using 3.14 as an estimation for pi):

`A_t = (1)/(2)(3.14)(2.5)^2 = 9.81m^2`

So, the area of this semicircle is 9.81m².