Finding the Perimeter Lesson

The perimeter of a rectangle is 46 cm. Its width is 5 centimeters. Find the length

• 10 cm
• 18 cm
• 4.6 cm
• 36 cm

The distance around an object is called the 

• area
• perimeter

Find the perimeter of the rectangle.

• 40 mm 
• 82 mm 
• 420 mm 
• 41 mm 

Find the perimeter of the rectangle.

• 50 in.
• 25 in.
• 45 in. 
• 100 in.

Find the perimeter of the rectangle.

• 50 m
• 36 m
• 72 m
• 22 m

What is the perimeter?

• 1 in

• 3 in.

• 4 in.

• 14in

What is the perimeter?

• 12in

• 9in

• 12in²

• 16in

Do you mostly add or multiply when finding the perimeter?

• Multiply

• Add

What does perimeter mean?

• the amount of space inside a shape
• the distance around the shape
• the amount of space inside a shape divided by two
• half the distance around a shape

What is the perimeter of this rectangle?

• 21 units

• 12 units

• 3 units

• 12 cm