Question

Surface Areas of Prisms and Cylinders (PLEASE HELP PLEASEEEEEEE ANSWER ALL QUESTIONS

Answer 1

The formula for the surface area of a prism is SA=2B+ph, where B, again, stands for the area of the base, p represents the perimeter of the base, and h stands for the height of the prism.

A=2πrh+2πr2 is the formula for the surface area of a cylinder

12. A≈490.61 square inches

Answer 2

For question 12 the answer is A = 490.61 square inches

A=2πrh+2πr2 is the formula for the surface area of a cylinder

Explanation:

The formula for the surface area of a prism is SA=2B+ph, where B, again, stands for the area of the base, p represents the perimeter of the base, and h stands for the height of the prism.