Area and Perimeter Expressions

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2(length + width)

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

What does the term 'perimeter' mean?

Back

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

Front

What does the term 'area' mean?

Back

Area is the amount of space inside a shape.

Front

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

Back

Perimeter = 2(5 + 3) = 16 units.

Front

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

Back

Area = 5 × 3 = 15 square units.

Front

What is the formula for the perimeter of a triangle?

Back

Perimeter = side1 + side2 + side3

Front

If a triangle has sides of lengths 3, 4, and 5 units, what is its perimeter?

Back

Perimeter = 3 + 4 + 5 = 12 units.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

If a triangle has a base of 6 units and a height of 4 units, what is its area?

Back

Area = 1/2 × 6 × 4 = 12 square units.