Lesson 12.5: Surface Area Answers

The circumference of the base of a cone is 24 inches. The slant height of the cone is 20 inches.What is the surface area of the cone? Express the answer in terms of .

The square pyramid below has a height of 12 centimeters and a slant height of 20 centimeters. The square base of the pyramid has side lengths of 32 centimeters.

A square pyramid has a base with side lengths each measuring 40 inches. The pyramid is 21 inches tall, with a slant height of 29 inches.

For a project, Gabrielle made a model of an Egyptian pyramid. The square base has a side length measuring 10 inches. The pyramid is 12 inches tall.What is the surface area of the model?

A cube has a lateral area of 676 square feet.What is the side length of the cube?

The base of a cylinder has a radius of 9 centimeters. The cylinder is 12 centimeters tall.

The rectangular prism below has a length of 18 inches, a width of 24 inches, and a height of 12 inches.

A rectangular prism has dimensions x units, 2x units, and x + 8 units.Which expression represents the surface area of the prism?

The triangular bases of a triangular prism have three congruent sides, each measuring 10 centimeters. The height of each of the triangular bases is approximately 8.7 centimeters. The height of the prism is 15 centimeters.

A square pyramid has side lengths each measuring 8 centimeters. The height of the pyramid is 3 centimeters.What is the lateral area of the pyramid?

An 8-sided die is formed when two square pyramids are attached by their bases. The perimeter of the base shape is 6 centimeters. The distance between the tallest points of the two pyramids is 2 centimeters.

The cone below has a radius of 3 inches, a height of 4 inches, and a slant height of 5 inches.

The area of the circular base of a cylinder is 36π square units. The height of the cylinder is 2 units.What is the lateral area of the cylinder? Express the answer in terms of π.