Perimeter & Area Review

Front

What is the area of a rectangle?

Back

Area = Length × Width

Front

What is the formula to find the perimeter of a rectangle?

Back

Perimeter = 2 × (Length + Width)

Front

What is the area of a square with a side length of 5 cm?

Back

Area = 5 cm × 5 cm = 25 sq cm

Front

If a rectangle has a length of 10 cm and a width of 4 cm, what is its perimeter?

Back

Perimeter = 2 × (10 cm + 4 cm) = 28 cm

Front

What does 'perimeter' mean?

Back

Perimeter is the total distance around the outside of a shape.

Front

What is the area of a triangle with a base of 6 cm and a height of 4 cm?

Back

Area = 1/2 × Base × Height = 1/2 × 6 cm × 4 cm = 12 sq cm

Front

If a shape has an area of 50 sq cm and a length of 10 cm, what is its width?

Back

Width = Area ÷ Length = 50 sq cm ÷ 10 cm = 5 cm

Front

What is the perimeter of a square with a side length of 8 cm?

Back

Perimeter = 4 × Side = 4 × 8 cm = 32 cm

Front

What is the area of a rectangle with a length of 7 m and a width of 3 m?

Back

Area = 7 m × 3 m = 21 sq m

Front

If a rectangle has a perimeter of 40 cm and a length of 15 cm, what is its width?

Back

Width = (Perimeter ÷ 2) - Length = (40 cm ÷ 2) - 15 cm = 5 cm