Perimeter is the length of the border. The best way to find it here is to split the figure up into a semicircle and a trapezoid.

The radius of the semicircle is 9 in. so its perimeter is 2pir/2 = 9pi in.

The perimeter of the trapezoid can be found by adding the lengths of all sides. The bottom side is 2 times the radius of the semicircle, 18 inches. Add this to the other lengths: 5 in, 12 in, 5 in.

The total perimeter is then 40 + 9pi.

6 0

3 years ago

A recipe for chocolate cake calls for 1 1/2 cups cups of sugar for every 2 1/4 cups of flour. If a baker has only 1/2 cup of sug

Reil [10]

Answer:

he should add 3/4 flower

Step-by-step explanation:

set up the proportion $\frac{1.5}{.5} =\frac{2.25}{x}$

then solve for x

8 0

2 years ago