Area and Perimeter

Front

What is area?

Back

Area is the amount of space inside a shape, measured in square units.

Front

What is perimeter?

Back

Perimeter is the distance around a shape, calculated by adding the lengths of all its sides.

Front

How do you find the area of a rectangle?

Back

Multiply the length by the width.

Front

How do you find the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: P = 2(length + width).

Front

If a rectangle has a length of 5 feet and a width of 3 feet, what is its area?

Back

15 square feet (5 x 3 = 15).

Front

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

Back

28 feet (10 + 10 + 4 + 4 = 28).

Front

What is the area of a square with a side length of 6 cm?

Back

36 square centimeters (6 x 6 = 36).

Front

What is the perimeter of a square with a side length of 5 m?

Back

20 meters (5 + 5 + 5 + 5 = 20).

Front

How do you calculate the area of a triangle?

Back

Area = 1/2 x base x height.

Front

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

Back

20 square centimeters (1/2 x 8 x 5 = 20).