ATB Geometry and Measurement

Question 1

A rectangular room is 12 feet long and 9 feet wide. How many square feet of carpet are needed to cover the floor?

Accepted Answer

108 square feet

Answer

The area of a rectangle is length × width, so 12 × 9 = 108 square feet. 42 feet is the perimeter, not the area.

Question 2

A fence will go around a rectangular garden that is 15 meters long and 6 meters wide. How many meters of fencing are needed?

Accepted Answer

42 meters

Answer

Perimeter = 2 × (length + width) = 2 × (15 + 6) = 2 × 21 = 42 meters.

Question 3

How many inches are in 3.5 feet?

Accepted Answer

42 inches

Answer

There are 12 inches in 1 foot, so 3.5 × 12 = 42 inches.

Question 4

A storage box is 4 feet long, 3 feet wide, and 2 feet high. What is its volume?

Accepted Answer

24 cubic feet

Answer

The volume of a rectangular box is length × width × height, so 4 × 3 × 2 = 24 cubic feet.

Question 5

Two angles of a triangle measure 50° and 70°. What is the measure of the third angle?

Accepted Answer

60°

Answer

The interior angles of any triangle add up to 180°, so 180 − (50 + 70) = 60°.

ATB - Ability to Benefit Practice Test