10.3 Areas of Parallelograms Objective: Find the area of parallelograms Homework: p 550-551, #11-13, 17, 19-21

Key Terms Base of a Parallelogram: ______________________________________________________________________________________________ Height of a Parallelogram: ______________________________________________________________________________________________

Area of a Parallelogram A = bh b= base h=height Example: A=

Example 1: Finding the area of a Parallelogram The base of a parallelogram is 5 inches. The height is twice the base. Find the area of the parallelogram. A = bh

Example 2: Finding the area of a Parallelogram Find the area of the parallelogram. A=bh 1.) 2.) 5 ft 10 ft 6ft 11 ft

Example 3: Find the missing Base Find the length of the base in the parallelogram. 1.) 2.) A = 150 ft2 A = 60 ft 2 x 15 ft 3 ft x

Example 4 : Find the missing Height Find the length of the height in the parallelogram. 1.) 2.) A = 135 in 2 A = 210 in 2 x x 45 in 30 in