Step-by-step explanation:
Finding a regular polygon with <em>x </em>amount of sides, you use the equation 
to find the amount of triangles. Replace <em>x </em>with 15 and you will get 13. Each triangle has angles that add to 
, so you would do 180 * 13 to find the total of all of the interior angles, = 2340. Then, divide 2340 by 15, and you will get 156!
Answer: 16 inches
Step-by-step explanation:
Complete question
(A cylindrical container can hold about 1256 cubic inches of water. the diameter of the cylinder is 10 inches long. approximate the height if the cylinder to the nearest inch . Use 3.14 to approximate the value of pi)
Volume of a cylinder = 3.14 * r² * h
r = radius of the cylinder
H = height of the cylinder
Pi = 3.142
Radius = diameter/ 2
R = 10/2 = 5 inches
1256 = 3.14 * 5² * h
1256 = 78.5h
Divide both sides by 78.5 to get h,
H = 1256 / 78.5 = 16 inches
The height of the cylinder is 16 inches
That would be C
A is 9 - 3 = 6
B is 9 / 3 = 3
D is 9 + 3 = 12
So remaining option would be C.
Hope this helps.
