Learning Target:Students will learn how to calculate the

area of parallelograms.

Do you know the qualifications needed for a figure to be classified as a

rectangle?

Do you know the qualifications needed for a figure to be classified as a

rectangle?

A: Two sets of parallel lines and 4 right angles

What is the difference between a rectangle and a parallelogram?

What is the difference between a rectangle and a parallelogram?

A: A parallelogram still has two set of parallel sides but does not have 4 right

angles.

Now that you know this about parallelograms how will it affect us

when trying to find the area of parallelograms?

Now that you know this about parallelograms how will it affect us

when trying to find the area of parallelograms?

A: We will not be able to find the height of the parallelogram from it’s

side.

Parallelogram

http://www.analyzemath.com/Geometry_calculators/parallelogram_1.gif

Vocabulary:Base of a parallelogram: length of one side of the parallelogram.Height of a parallelogram: is the distance from the base to the opposite side of the parallelogram. The height is perpendicular to the base. Perpendicular: means the two lines meet at a right angle.

Area of a Parallelogram:

Words:Area = base times height

Formula:A = bh

Find the area of a parallelogram with a height of 20 m and base of 25 m.

Find the area of a parallelogram with a height of 20 m and base of 25 m.

20 x 25 = 500 m2

Explain how you can find the base of a parallelogram if you know the height

and the area.

The area of a parallelogram is 84 square feet and the height is 12 feet.

What is the base?

The area of a parallelogram is 84 square feet and the height is 12 feet.

What is the base?

A= bh84 = b(12)84/12 = b

7 = b Base is 7 ft long.

Can you calculate the area of parallelograms?