10 Area and Perimeter short (flash cards) 2

Front

What is the formula to calculate the area of a rectangle?

Back

Area = length × width

Front

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

Back

Perimeter = 2 × (length + width)

Front

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

Back

Area = 5 × 5 = 25 square units

Front

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

Back

Perimeter = 4 × 4 = 16 units

Front

If a rectangle has a length of 10 units and a width of 3 units, what is its area?

Back

Area = 10 × 3 = 30 square units

Front

If a rectangle has a length of 8 units and a width of 2 units, what is its perimeter?

Back

Perimeter = 2 × (8 + 2) = 20 units

Front

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

Back

Area = 1/2 × base × height = 1/2 × 6 × 4 = 12 square units

Front

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

Back

Perimeter = 3 + 4 + 5 = 12 units

Front

What is the area of a circle with a radius of 3 units?

Back

Area = π × radius² ≈ 3.14 × 3² ≈ 28.26 square units

Front

What is the perimeter of a circle called?

Back

Circumference