Area and Perimeter

Front

What is the definition of perimeter?

Back

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

Front

How do you calculate the perimeter of a rectangle?

Back

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

Front

What is the formula for the perimeter of a triangle?

Back

Add the lengths of all three sides: P = side1 + side2 + side3.

Front

What is the definition of area?

Back

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

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

Area = 1/2 × base × height.

Front

What units are used to measure area?

Back

Area is measured in square units, such as square centimeters (cm²) or square meters (m²).

Front

What is the perimeter of a square with each side measuring 5 units?

Back

P = 4 × side = 4 × 5 = 20 units.

Front

If a rectangle has a length of 8 units and a width of 3 units, what is its perimeter?

Back

P = 2(length + width) = 2(8 + 3) = 22 units.

Front

What is the area of a rectangle with a length of 6 units and a width of 4 units?

Back

A = length × width = 6 × 4 = 24 square units.