1. 10.3 Areas of Parallelograms
Objective: Find the area of parallelograms
Homework: p , #11-13, 17, 19-21

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

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

4. 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

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

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

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