Answer:
The length is of 59 cm.
Step-by-step explanation:
Perimeter of a rectangle:
The perimeter of a rectangle with width w and length l is given by:

Width of 49 centimeters and a perimeter of 216 centimeters:
This means that 
The length is cm.
We have to solve the equation for l. So






The length is of 59 cm.
To find the length of each side 72/4
Each side is 18
So area is 18 times 18= 324
10 boys equals 70 pockets
7 girls equals 77 pockets
that equals 147 pockets and 17 heads
Answer: 5:6
Explanation:
The 2 polygons are similar
So 25/30 = 25.5/30.6 = 5/6 or 5:6
If x is the number of sides of the regular polygon, then the sum of the interior angles is (x - 2) * 180 = 56 * 90. Solving for x gives 30 for the number of sides of the regular polygon.
To get the central angles measure, divide 360 by 30 to get 12 degrees for the measure of one of the 30 central angles.
Answer: 12 degrees