Perimeter and Area

Front

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

Back

Area = width × height.

Front

If a rectangle has a width of 5 inches and a height of 10 inches, what is its area?

Back

Area = 5 in × 10 in = 50 square inches.

Front

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

Back

Perimeter = 2 × (length + width).

Front

If a rectangle has a length of 8 meters and a width of 3 meters, what is its perimeter?

Back

Perimeter = 2 × (8 m + 3 m) = 22 meters.

Front

What is the area of a rectangle with a length of 12 cm and a width of 4 cm?

Back

Area = 12 cm × 4 cm = 48 square centimeters.

Front

How do you find the length of a rectangle if you know the area and the width?

Back

Length = Area ÷ Width.

Front

If a rectangle has an area of 56 square inches and a width of 7 inches, what is the length?

Back

Length = 56 in² ÷ 7 in = 8 inches.

Front

What is the relationship between area and perimeter in rectangles?

Back

Area measures the space inside the rectangle, while perimeter measures the distance around it.

Front

How do you convert the perimeter from inches to centimeters?

Back

Multiply the number of inches by 2.54 to convert to centimeters.

Front

If a rectangle has a perimeter of 40 cm and a width of 10 cm, what is the length?

Back

Length = (Perimeter ÷ 2) - Width = (40 cm ÷ 2) - 10 cm = 10 cm.