Perimeter and Area

By Mark Philbin

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To find the perimeter, add up all the sides...​

Perimeter=s+s+s+s​
14= 2 + 3 + 5 + 4

Perimeter = ​14 units

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To find the perimeter, add up all the sides...​

​Perimeter= s + s + s

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Add up all the sides..

​Rectangles have EQUAL, opposite sides.

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add all 4 sides​

Multiple Choice

The distance around an object is called the 

• area
• perimeter

Multiple Choice

what is the perimeter of the triangle?

• 14 m

• 15 m

• 16 m

Multiple Choice

What is the perimeter of the rectangle?

• 21 ft.

• 10 ft.

• 20 ft.

Multiple Choice

What is the perimeter of the pentagon?

• 12 units

• 18 units

• 15 units

Multiple Choice

What is the perimeter of the fence?

• 25 units

• 30 units

• 35 units

• 50 units

AREA

measured in square units such as square centimeters, square feet, square inches, etc.​

In order to calculate the area of a rectangle, you multiply the length times the width.

5 inches x 2 inches = 10 square inches

Multiple Choice

The total space inside a shape is called the 

• area
• perimeter

Multiple Choice

What is the area of this shape?

• 13 square units

• 40 square units

• 20 square units

• 26 square units

Multiple Choice

What is the area of this shape?

• 11 inches

• 11 square inches

• 28 inches

• 28 square inches

Multiple Choice

Find the area of the rectangle.

• 36 in.²
• 72 in.²
• 26 in.²
• 13 in.²

Multiple Choice

Nadia wants to make a frame for her kitten poster in her room.  Is she looking for the area or the perimeter?

• Area

• Perimeter

Multiple Choice

If Michelle measures the total space the top of her table, what is she looking for?

• area

• perimeter

Multiple Choice

If Mark needs to figure out the amount of wire needed to build a fence around his backyard, what is he looking for?

• area

• perimeter

Multiple Choice

The formula length x width or l x w is used to find_________.

• area

• perimeter

Poll

How confident do you feel about area and perimeter?

• I could teach this!!

• I'm good!

• I've almost got it.

• I still need more practice.