Perimeter of Compound Shapes

The distance around an object is called the 

• area
• perimeter

How do you calculate the perimeter of a shape?

• Add all the sides together

• Multiply the length by the width

• Add the length and width together

• None of these options

Find the perimeter.

• 2.4 ft

• 6.4 ft

• 5.76 ft

• 1.2 ft

What is the perimeter of this triangle?

• 20

• 10

• 160

• 17

Rob is measuring his chocolate bar. It's length is 4 inches and its width is 6 inches. What is the perimeter?

• 12 in

• 24 in

• 20 in

• 576 in

Jen wants to know how much fencing she needs for the following:

• 41 sq yd

• 2,340 sq yd

• 20.5 yd

• 41 yd

What is the perimeter of this shape?

• 33 cm

• 23 cm

• 36 cm

• 40 cm

What is the perimeter of this shape?

• 200 mm

• 210 mm

• 150 mm

• 65 mm

Farmer Bob needs to build a fence for his chickens. The area he wants to build a fence around is 40 metres long and 20 metres wide. How many metres of fence does he need to buy?

• 800 m

• 100 m

• 60 m

• 120 m

What is the perimeter of this shape?

• 171cm
• 314cm
• 414cm
• 514cm