Area and Perimeter Practice

Front

What is the formula for the area of a rectangle?

Back

A = l × w (Area = length × width)

Front

What is the formula for the area of a triangle?

Back

A = ½bh (Area = 1/2 × base × height)

Front

What is the formula for the area of a circle?

Back

A = πr² (Area = pi × radius squared)

Front

What is the formula for the perimeter of a rectangle?

Back

P = 2l + 2w (Perimeter = 2 × length + 2 × width)

Front

What is the formula for the perimeter of a triangle?

Back

P = a + b + c (Perimeter = sum of all sides)

Front

What is the distance around a shape defined as?

Back

Perimeter

Front

If a rectangle has a length of 10 feet and a width of 5 feet, what is its area?

Back

50 square feet (A = 10 × 5 = 50)

Front

If a triangle has a base of 8 cm and a height of 5 cm, what is its area?

Back

20 square cm (A = ½ × 8 × 5 = 20)

Front

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

Back

28.26 square cm (A = π × 3² ≈ 28.26)

Front

If a rectangle has a perimeter of 30 feet and a length of 10 feet, what is its width?

Back

5 feet (P = 2l + 2w; 30 = 2(10) + 2w; 30 = 20 + 2w; 2w = 10; w = 5)