Perimeter

Perimeter: a measurement of the distance around the outer edge of a shape.

​Perimeter measures the distance AROUND the shape.

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This square has sides that each measure 2cm.

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To find the perimeter we must ADD all of the sides together.​

​Perimeter= Side + side+ side + side

Perimeter= 2cm + 2cm + 2cm + 2cm ​

Multiple Choice

What is the perimeter of this triangle?

• 10cm

• 11cm

• 12cm

• 9cm

Multiple Choice

What is the perimeter of this square?

• 12cm

• 16cm

• 8cm

• 4cm

Multiple Choice

What is the perimeter of this rectangle?

• 45cm

• 14cm

• 18cm

• 28cm

Multiple Choice

What is the perimeter of this shape?

• 24cm

• 8cm

• 35cm

• 17cm

Multiple Choice

The perimeter of the shape is 20 units. What is the length of the missing side?

• 4 units

• 6units

• 7 units

• 8units