Perimeter

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

Tags

CCSS.3.MD.D.8

To find the perimeter of any figure

• Add the lengths of all the sides
• Multiply the lengths of all the sides
• Add 2 sides and multiply it by the rest of the sides. 
• Multiply by 4 always.  Always. 

Tags

CCSS.3.MD.D.8

What is the perimeter?

• 8m

• 9.5m

• 4.5m

• 9m

What is the perimeter?

• 9cm

• 9m

• 10m

• 8m

What is the perimeter?

• 10m

• 10cm

• 8m

• 5m

What is the perimeter of the triangle?

• 5cm

• 15cm

• 10cm

• 20cm

What is the perimeter of the hexagon?

• 16cm

• 40cm

• 24cm

• 12cm

What is the missing measurement?

• 9 cm

• 18 m

• 18 cm

• 9 m

What is the perimeter?

• 20m

• 40m

• 60m

• 80m

Perimeter of rectangle?

• 84 cm

• 38 cm

• 72 cm

• 19 cm