Finding Area and Perimeter of Geometric Figures

What operation do you use when finding area?

• Addition

• Subtraction

• Multiplication

• Division

Ian is building a rectangular sandbox. The perimeter will be 12 feet. He wants the sandbox to have the greatest possible area. What could be Ian's sandbox?

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How do you find the area of a rectangle?

• Length + Length + Length + Length

• Length + Width

• Length x Width

• Width x Width

L + W + L + W

• Area

• Perimeter

When measuring area, what label do you use?

• units

• units²

• units³

What is the perimeter of rectangle B?

• 5

• 6

• 8

• 10

Which statement about the perimeters and areas of Cheung’s rectangles is true?

• The areas are the same, and the perimeters are the same.

• The areas are the same, and the perimeters are different.

• The areas are different, and the perimeters are different.

• The areas are different, and the perimeters are the same.

What is the area of this figure?

• 12 sq. cm

• 32 sq. cm

• 16 sq. cm

• 28 sq. cm

What is the area of each rectangle?

• A: Area = 6 square units;    B: Area = 6 square units

• A: Area = 6 square units;    B: Area = 3 square units

• A: Area = 14 square units;    B: Area = 10 square units

• A: Area = 7 square units;    B: Area = 5 square units

The distance around an object can be found using:

• area

• perimeter