Area and Perimeter Concepts

You want to buy a new carpet for your rectangular room. Which measurement would you need to find to know how much carpet to buy?

• Perimeter

• Area

• Length

• Width

What does the area of a shape represent?

• The distance around the shape.

• The space inside the shape.

• The number of corners a shape has.

• The length of one side of the shape.

How do you calculate the area of a rectangle?

• Add all the sides together.

• Multiply the length by the width.

• Multiply the length by 2 and the width by 2, then add them.

• Divide the length by the width.

What does the perimeter of a shape represent?

• The space inside the shape.

• The number of square units that fit inside.

• The distance around the outside of the shape.

• The height of the shape.

One way to find the perimeter of a rectangle is to:

• Multiply its length by its width.

• Add the length and width, then multiply by 2.

• Add the lengths of all its sides together.

• Divide the area by the length.

What kind of units are used to measure area?

• Regular units (like feet or meters).

• Linear units.

• Square units (like square feet or square meters).

• Cubic units.

If a rectangular backyard is 9 feet long and 8 feet wide, what is its area?

• 17 square feet

• 34 square feet

• 72 square feet

• 81 square feet

If a rectangular backyard is 9 feet long and 8 feet wide, what is its perimeter?

• 17 feet

• 34 feet

• 72 feet

• 144 feet

What kind of units are used to measure perimeter?

• Square units.

• Cubic units.

• Regular units (like feet or meters).

• Area units.

Which formula can also be used to find the perimeter of a rectangle?

• Length x Width

• (Length + Width) / 2

• (2 x Length) + (2 x Width)

• Length + Width