Understanding Basic Area and Volume

What is the formula for the area of a rectangle?

• Length + Width

• Length × Width

• 2 × (Length + Width)

• ½ × Base × Height

Which of the following is measured in cubic units?

• Perimeter

• Area

• Radius

• Volume

A triangle has a base of 8 cm and a height of 10 cm. What is its area?

• 40 cm²

• 80 cm²

• 20 cm²

• 50 cm²

What is the purpose of the ½ in the triangle area formula?

• It adjusts for angles

• A triangle is half of a rectangle

• It is needed for all 2D shapes

• It accounts for volume

How is calculating area different from calculating volume?

• Area measures edges; volume measures total shape perimeter.

• Area measures length only; volume measures length and width.

• Area measures flat (2D) space; volume measures space inside a 3D shape.

• Area measures space inside; volume measures outside dimensions.

• 100 ft³

• 200 ft³

• 250 ft³

• 150 ft³

A rectangle’s length doubles and width stays the same. What happens to its area?

• It stays the same

• It doubles

• It triples

• It quadruples

• 250cm³

• 500cm³

• 785cm³

• 900cm³

A prism has a base area of 30 in² and a volume of 180 in³. What is its height? V = Area of Base × Height

• 3 in

• 5 in

• 6 in

• 9 in

A rectangular rug has an area of 72 ft² and a width of 8 ft. What is its length?

• 7 ft

• 9 ft

• 10 ft

• 12 ft