Answer:
c
Step-by-step explanation:
Recall that the volume of a regular prism is given by the area of the base times the height.
Given that the base of the prism is a regular pentagon with an apothem of 2.8 centimeters.
The pentagon consist of 5 isosceles triangles with the apothem as the height and the side of the pentagon as the base.
Recall that the are of a triangle is given by 1/2 base times height.
Thus the area of of the pentagon base of the prism is given by

Therefore, the volume of the prism is given by
Answer:
Louise is 16
Todd is 18
Step-by-step explanation:
Answer: 
Step-by-step explanation:
To find the circumference of a circle, you can use
. You can set this equal to 21 (feet). The equation to solve at this point would be
.