What is the area of a semicircle with diameter of 6

Your answer is 14.13.

Heres how I got it:

First, the formula for area of a semi circle is 3.14 x r^2 and divide by two.

To find the radius, we need to divide the diameter by two, which is 3.

Now, lets plug in our numbers.

3.14 x 3^2/2

3.14 x 9/2

28.26/2

A=14.13

Area of circle = pi (d/2) ^2

area of semi-circle = 0.5 * pi (d/2) ^2

=0.5 * pi (6/2) ^2

=14.14