Question

Which is the area of the figure? use 3.14 for pie?

Answer 1

You have a square, ok? Do you know how to calculate the area of a square? It is just side by side. (side x side). Then, the quid here is to observe that one of the sides of the square is the diameter of a semicircle¡ Then, if you know how to calculate the area of a circle, you can calculate it and divide it by two.

Answer 2

The area of a circle is \[Area = Radius ^{2} . pi\]
Observe that you have the side of the square, and that is the diameter of the semicircle. Then you can calculate the Radius by dividing the diameter by two. And then use it to calculate Area using the expresion above.

Answer 3

math fried my brian

Answer 4

First, find the area of the square region (we know it's square since the lengths are given as the same). That would be 42=16ft2. Now we need to find the area of the half circle. The area of a half circle is (πr2)/2 where r is the radius. The radius is half of the diameter, and we know the diameter to be 4ft. Therefore, the area of the half circle is

3.14*(4/2)2/2 = 3.14*2^2/2 = 3.14*2=6.28

16+6.28=22.28

Answer 5

Thannk you(;

Answer 6

no problem