the amount of matter in an object.

the pull of gravity on the mass of an object.

the distance between two points along a line.

the amount of space that a substance occupies.

350 kilometers

35 kilometers

3.5 kilometers

0.35 kilometers

length × width × height ÷ 3

length + width + height ÷ 2

length + width + height

length × width × height

base × height ÷ 2

base × height × 2

1/2 the area of a rectangle

1/2 the area of a triangle

1/2 × base × height

Cover the bottom of the box with cubes and then build up the layers to fill the entire box.

Add the length, the height, and the width of the box.

Combine the lengths of each side of the box and then multiply by the height of the box.

Multiply the length of the box by the width of the box.

Perimeter of 28 units and area of 28 square units

Perimeter of 30 units and area of 30 square units

Perimeter of 28 units and area of 30 square units

Perimeter of 30 units and area of 28 square units