Area and Perimeter of Triangles and Rectangles

Find the perimeter of this triangle.

• 12 in

• 22 in

• 18 in

• 24 in

Find the area of this triangle.

• 12 in²

• 22 in²

• 18 in²

• 24 in²

Find the area.

• 25.9 yd²

• 12.95 yd²

• 6.475 yd²

• 12.95 m²

Using the formula for the area of a rectangle, solve for the area of the rectangle.

• 24 cm²

• 11 cm²

• 5 cm²

• 2.3 cm²

What is the perimeter of the triangle?

• 51 cm

• 59 cm

• 45 cm

• 48 cm

What is the perimeter of the rectangle?

• 28 in

• 46 in

• 56 in

• 98 in

If the area of a triangle is 48 cm² and the base of the triangle is 12 cm, what is the height?

• 4 cm

• 36 cm

• 60 cm

• 8 cm

Farmer Bob's son built a track to walk his pet pig.  The track goes around the pig pen.  The pig pen is 15 feet long and 21 feet wide.  If the pig walks all the way around the track, how many feet did he walk?

• 72 feet

• 36 feet

• 36 square feet

Find the area of a triangle with a base of 7 mm and a height of 10 mm?

• 70 mm squared

• 35 mm squared

• 17 mm squared

• 8.5 mm squared

Mrs. Davis wanted to cover the classroom with new carpet. If the length of the classroom was 12 feet and the width was 8 feet. How much carpet would she need to buy?

• 20 ft

• 40 ft

• 96 ft²

• 40 ft²