Area and perimeter flashcard

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 definition of area?

Back

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 unit of measurement for area?

Back

Square units (e.g., square centimeters, square meters).

Front

What is the unit of measurement for perimeter?

Back

Linear units (e.g., centimeters, meters, inches).

Front

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

Back

P = 2(5 cm + 3 cm) = 16 cm.

Front

If a rectangle has a length of 8 cm and a width of 4 cm, what is its area?

Back

A = 8 cm × 4 cm = 32 cm².

Front

What is the perimeter of a square with a side length of 4 cm?

Back

P = 4 × 4 cm = 16 cm.

Front

What is the area of a square with a side length of 4 cm?

Back

A = 4 cm × 4 cm = 16 cm².