Question

A banner is made of a square and a semicircle. The square has side lengths of 26 inches. One side of the square is also the diameter of the semicircle. What is the total area of the banner?

Answer 1

The area of the square is 26*26=676. The radius of the circle is 13, and the formula for a circle is pi(r^2). Since it is a semicircle the area would be .5(pi)(13^2) You need the total area, which is 676 + .5(169)(pi).

Answer 2

The area of the square is 676
The area of a circle is pi*r^2
So pi*13^2. Divide that by 2 since it's a semicircle.
So the area is 676+((pi*169)/2)