Surface Area (1.6) and Volume (1.7) Review

What is the formula to find the area of a triangle?

• side+side+side

Answer explanation

The base and height of a triangle create a right angle.

What is the formula to find the area of a rectangle?

• add all sides

Answer explanation

The base and height of a triangle create a right angle.

How do you find the area of a trapezoid?

In a triangular prism, what shape HAS to be the base?

• rectangle

• triangle

• trapezoid

• it does not matter - whatever one is on the bottom

Select what situation would require you to find the surface area.

• amount of trash in a bin

• water it takes to fill a pool

• how much border on a bulletin

• amount of wrapping paper needed for a gift

Select ALL situations would require you to find the surface area.

• How much paint needed for a room

• The amount of wood for a fence around a house

• How many marbles fit in a jar

• The amount of air in a bag of chips

What would be the necessary strategy to find how much paint is needed for the walls of a rectangular bedroom? Select ALL possible ways.

• Find the area of the floor, ceiling, and walls. Add them together.

• Find the area of all of the rectangles and then subtract the ceiling and floor.

• Find the area of just the walls and add them together.

• Find the area of the floor and then multiply it with the height of the room.

Surface area is always

• units

Volume is always

• units

The surface area is _____ m^2.