8'5 Area of Parallelograms 32608

1
8.5 Area of Parallelograms 3/26/08

• Bases of a Parallelogram either pair of
  parallel sides of a parallelogram.
• Height of a Parallelogram the shortest distance
  between the bases of a parallelogram.

HEIGHT
HEIGHT
BASE
BASE
2
Area of a Parallelogram

• Area (base)(height)
• A bh

h
b
3
Find the Area of a Parallelogram

• Find the area of the parallelogram.
• Solution
• Use the formula for the area of a parallelogram.
• A bh
• (9)(6)
• 54 m2
• The parallelogram has an area of 54 square meters.

6 m
9 m
4
Find the Height of a Parallelogram

• Find the height of the parallelogram given that
  its area is 78 square feet.
• Solution
• Use the formula for the area of a parallelogram.
• A bh
• 78 12 h
• 6.5 h
• The parallelogram has height of 6.5 feet.

A 78 ft.2
h
12 ft.
5
Area of a Rhombus

• Area 1 (product of diagonals)
• 2

d1
d2
6
Find the Area of a Rhombus

• Find the area of the rhombus.

14 in.
10 in.
7
Find the Area of a Rhombus

• Find the area of the rhombus.

6 m
9 m
9 m
6 m
8
More Practice!!!!

• Textbook p. 442 8 13, p. 443 18 20, p.
  443 23 28.
• Homework Worksheet 8.5