Calculating Perimeter and Area of Rectangles

Front

What is the formula for calculating the perimeter of a rectangle?

Back

Perimeter = 2 × (Length + Width)

Front

What is the formula for calculating the area of a rectangle?

Back

Area = Length × Width

Front

If a rectangle has a length of 10 units and a width of 5 units, what is its area?

Back

50 square units

Front

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

Back

22 units

Front

What is the relationship between the perimeter and area of a rectangle?

Back

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

Front

A rectangle has a length of 12 units and a width of 4 units. What is its perimeter?

Back

32 units

Front

A rectangle has a perimeter of 40 units. If the length is 15 units, what is the width?

Back

5 units

Front

What dimensions of a rectangle will give an area of 36 square units?

Back

Possible dimensions include 6x6, 9x4, or 12x3.

Front

If the length of a rectangle is doubled, how does that affect the perimeter?

Back

The perimeter increases by the amount of the new length added to the original perimeter.

Front

What is the area of a rectangle with a length of 7 units and a width of 9 units?

Back

63 square units