9 Area and Perimeter flash cards short 1

Front

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

Back

Area = length × width

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 5 cm and a width of 3 cm, what is its area?

Back

Area = 5 cm × 3 cm = 15 cm²

Front

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

Back

Perimeter = 2 × (5 cm + 3 cm) = 16 cm

Front

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

Back

Area = side × side = 4 cm × 4 cm = 16 cm²

Front

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

Back

Perimeter = 4 × side = 4 × 4 cm = 16 cm

Front

What is the difference between area and perimeter?

Back

Area measures the space inside a shape, while perimeter measures the distance around a shape.

Front

If a rectangle has an area of 24 cm² and a width of 4 cm, what is its length?

Back

Length = Area ÷ Width = 24 cm² ÷ 4 cm = 6 cm

Front

What is the area of a triangle with a base of 6 cm and a height of 3 cm?

Back

Area = 1/2 × base × height = 1/2 × 6 cm × 3 cm = 9 cm²

Front

What is the perimeter of a triangle with sides measuring 3 cm, 4 cm, and 5 cm?

Back

Perimeter = 3 cm + 4 cm + 5 cm = 12 cm