Perimeter & Area

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 square?

Back

P = 4 × side length.

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its perimeter?

Back

P = 2(10 cm + 5 cm) = 30 cm.

Front

What is the area of a rectangle?

Back

Area is the amount of space inside a shape, calculated as A = length × width.

Front

How do you calculate the area of a square?

Back

A = side length × side length.

Front

What is the difference between perimeter and area?

Back

Perimeter measures the distance around a shape, while area measures the space inside it.

Front

If the perimeter of a rectangle is 24 meters and the length is 8 meters, what is the width?

Back

Width = (Perimeter/2) - Length = (24/2) - 8 = 4 meters.

Front

What is the perimeter of a triangle with sides measuring 3 cm, 4 cm, and 5 cm?

Back

P = 3 cm + 4 cm + 5 cm = 12 cm.

Front

How do you find the perimeter of a polygon?

Back

Add the lengths of all the sides together.