L.28 Perimeter and Area of Rectangles

Front

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is the total distance around the rectangle, calculated by adding the lengths of all four sides.

Front

How do you find the perimeter of a rectangle?

Back

Add the side lengths together (Perimeter = Length + Length + Width + Width).

Front

What is the area of a rectangle?

Back

The area of a rectangle is the amount of space inside it, calculated by multiplying the length by the width.

Front

How do you find the area of a rectangle?

Back

Multiply the length by the width (Area = Length x Width).

Front

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

Back

15 cm² (Area = 5 cm x 3 cm).

Front

If a rectangle has a length of 10 inches and a width of 9 inches, what is its area?

Back

90 sq. in. (Area = 10 in x 9 in).

Front

What is the formula for calculating the perimeter of a rectangle?

Back

Perimeter = 2 x (Length + Width).

Front

What units are used to measure area?

Back

Area is measured in square units, such as square centimeters (cm²) or square feet (sq ft).

Front

What is the perimeter of a rectangle with a length of 14 feet and a width of 7 feet?

Back

42 feet (Perimeter = 2 x (14 ft + 7 ft)).

Front

What is the area of a rectangle with a length of 8 m and a width of 4 m?

Back

32 m² (Area = 8 m x 4 m).