Area and Perimeter

Front

What is area?

Back

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

Front

What is perimeter?

Back

Perimeter is the distance around a shape, calculated by adding the lengths of all its sides.

Front

How do you calculate the area of a rectangle?

Back

Multiply the length by the width (Area = length × width).

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

How do you calculate the perimeter of a rectangle?

Back

Add the lengths of all four sides (Perimeter = 2 × (length + width)).

Tags

CCSS.4.MD.A.3

Front

What unit is used to measure area?

Back

Area is measured in square units, such as square centimeters (cm²) or square inches (in²).

Tags

CCSS.3.MD.C.5A

Front

What unit is used to measure perimeter?

Back

Perimeter is measured in linear units, such as centimeters (cm) or inches (in).

Front

If a rectangle has a length of 5 cm and a width of 3 cm, what is its area?

Back

15 square centimeters (5 cm × 3 cm = 15 cm²).

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a rectangle has a length of 5 cm and a width of 3 cm, what is its perimeter?

Back

16 centimeters (2 × (5 cm + 3 cm) = 16 cm).

Tags

CCSS.4.MD.A.3

Front

What is the area of a square with a side length of 4 units?

Back

16 square units (Area = side × side = 4 × 4 = 16).

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the perimeter of a square with a side length of 4 units?

Back

16 units (Perimeter = 4 × side = 4 × 4 = 16).

Tags

CCSS.4.MD.A.3