Area and Perimeter of a Triangle and Rectangle

You want to build a fence to go around your entire rectangular 7 foot by 6 foot garden. How much fencing will you need?

• 42 ft

• 26 ft

• 13 ft

• 20 ft

Find the perimeter of the triangle

• 32 in

• 40 in

• 30 in

• 28 in

Find the area of the triangle

Find the area of the triangle

• 63 units²

• 31.5 units²

• 77 units²

• 38.5 units²

How do you find the perimeter of a rectangle?

• Length × width

• Length + width

• Length + length + width + width

• Length × width × ½

What is the missing side length of the rectangle?

• 7 m

• 6 m

• 8 m

• 9 m

Find the perimeter of the rectangle.

• 50 in.

• 25 in.

• 45 in. 

• 100 in.

Find the area of the rectangle.

• 140 cm²

• 70 cm²

• 34 cm²

• 64 cm²

Find the area of the rectangle.

• 24 ft²

• 12 ft²

• 32 ft²

• 89 ft²

Find the perimeter of this triangle.

• 20 cm

• 21 cm

• 40 cm

• 12.5 cm