CCSS 4.MD.3 Review

Front

What is area?

Back

Area is the amount of space inside a two-dimensional shape, measured in square units.

Front

How do you calculate the area of a rectangle?

Back

Area = length × width.

Front

What is perimeter?

Back

Perimeter is the total distance around a two-dimensional shape.

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Front

If a rectangle has a length of 10 feet and a width of 5 feet, what is its area?

Back

Area = 10 feet × 5 feet = 50 square feet.

Front

If the perimeter of a rectangle is 20 units and the length is 6 units, what is the width?

Back

Width = (Perimeter/2) - Length = (20/2) - 6 = 4 units.

Front

What is the formula for the area of a square?

Back

Area = side × side.

Front

If a square has a side length of 4 inches, what is its area?

Back

Area = 4 inches × 4 inches = 16 square inches.

Front

What happens to the area of a rectangle if both the length and width are doubled?

Back

The area becomes four times larger.

Front

If a rectangle has an area of 24 square feet and a width of 4 feet, what is the length?

Back

Length = Area ÷ Width = 24 square feet ÷ 4 feet = 6 feet.