Area of Triangles & Quadrilaterals

Area

Find the area of each shape. Check your answers at the bottom of the page as you work. Show all your work to get full credit.

7

A triangular-shaped window has a base of 3 feet and a height of 4 feet. What is the area of the window?

11

The cross section of a water bin is shaped like a trapezoid. The bases of the trapezoid are 18 feet and 8 feet long. It has an area of 52 square feet. What is the height of the cross section?

15

Taylor wants to paint his rectangular deck that is 42 feet long and 28 feet wide. A gallon of paint covers about 350 square feet. How many gallons of paint will Taylor need to cover the entire deck?

22

A desktop in the shape of a parallelogram has base of 30 inches and a height of 40 inches. What is the area of the desktop?

23

The bases of a trapezoid are 24 feet and 16 feet. The height of the trapezoid is 12 feet. What is the area of the trapezoid?

24

Kathy is playing a board game. The game pieces are in the shape of a triangle. Each triangle has a base of 1.5 inches and a height of 2 inches. What is the area of a game piece?

Answers