Unit 16: Surface Area, Rotations and Cross Sections

The ________________ of a solid is the sum of the areas of its lateral faces, excluding the bases, in square units.

• Lateral Area

• Area

• Surface area

• 3D Area

The _____________ of a solid is the sum of the areas of all of its surfaces, including the bases.

• Surface Area

• Perimeter

• Volume

• Lateral Area

What is the equation for the surface area of a rectangular prism?

• SA= 2πrh

• SA= 2wh + 2lh + 2lw

• SA= (p) (l) + 2B

• LA= 2πr² + 2πrh

What is the Lateral Area equation for a cylinder?

• LA= 2rh + 2π²

• SA= 2πr² + 2πrh

• SA= 4πr²

• LA= 2πrh

Solve: A sphere has a volume of 972π cubic meters. What is the surface area of the sphere in terms of π.

• SA= 874πm²

• SA= 350πm²

• SA= 324πm²

• SA=840πm²

The volume of a cube is 64 cubic inches. What is its total surface area, in square inches?

• 32in²

• 98in²

• 87in²

• 96in²

In a regular pyramid, triangles are ____

• Congruent

• Parallel

• Perpendicular

• Similar

How do you find the lateral area of a regular pyramid?

• Find the area of 1 triangle, then multiply the area by the number of triangles

• Find the perimeter of 1 triangle, then multiply the area by the number of triangles

• Find the area of 1 triangle, then add the area to the number of triangles

• Find the area of all the triangles, then subtract the area from the number of triangles

How do you find the surface area of a regular pyramid?

• Find the perimeter of the base, then add to the LA

• Find the area of the base, then add to the LA

• Find the area of the base, then multiply to the LA

• Find the perimeter of the base, then multiply to the LA

What is the LA formula for a cone?

• LA= lxwxh

• LA= πr² + πrl

• LA= ½ bl

• LA= πrl