Perimeter Day 3

Perimeter

STAAR Camp

Day 3

By Meghan Owens

The measurement around the outside of an object

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side + side + side + side= perimeter​

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-Find the side lengths

-Add them together

-use your graph paper!​

PERIMETER

Multiple Choice

Ari'yana forgot the formula for perimeter of a square. How else can she find it?

• Multiply length times width.
• Add up all the sides.
• Subtract the length from the width.
• Pray for help. 

Multiple Choice

Do you multiply or add when you find the perimeter?

• Multiply
• Add

Multiple Choice

The distance around an object is called the 

• area
• perimeter

-find the SIDE LENGTHS

-Add them together!

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What is the perimeter?​

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side + side + side + side​

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Let's Try an Example...

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Multiple Choice

What is the perimeter of this rectangle?

• 21 units
• 12 units
• 3 units
• None of the above.

Multiple Choice

What is the perimeter of this rectangle? 

• 60 in
• 34 cm
• 60 cm
• 34 in

Multiple Choice

What is the perimeter?

• 12
• 15
• 18
• 3

Multiple Choice

What is the perimeter of the fence?

• 25
• 30
• 35
• 40

Multiple Choice

What is the perimeter of the rectangle? (Hint: top matches the bottom, left matches the right!)

• 28 sq feet

• 28 feet

• 48 feet

• 48 sq feet

Open Ended

What is the perimeter of the cover of Gina's journal in centimeters?