Finding Perimeter and Area

Front

What is the definition of perimeter?

Back

The perimeter is the total distance around the outside of a shape.

Front

How do you calculate the perimeter of a rectangle?

Back

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

Front

What is the definition of area?

Back

The area is the amount of space inside a shape.

Front

How do you calculate the area of a rectangle?

Back

Multiply the length by the width: A = length × width.

Front

What is the formula for the area of a triangle?

Back

A = 1/2 × base × height.

Front

What is the formula for the perimeter of a square?

Back

P = 4 × side length.

Front

What is the area of a square?

Back

A = side length × side length.

Front

What is the relationship between perimeter and area?

Back

Perimeter measures the boundary length, while area measures the space within.

Front

What is the perimeter of a shape with sides measuring 5, 10, 5, and 10 units?

Back

P = 5 + 10 + 5 + 10 = 30 units.

Front

What is the area of a rectangle with a length of 8 units and a width of 4 units?

Back

A = 8 × 4 = 32 square units.