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# Sec. 10.1

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### Sec. 10.1

1. 1. Learning Target:Students will learn how to calculate the area of parallelograms. <br />
2. 2. Do you know the qualifications needed for a figure to be classified as a rectangle?<br />
3. 3. 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 <br />
4. 4. What is the difference between a rectangle and a parallelogram?<br />
5. 5. 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.<br />
6. 6. Now that you know this about parallelograms how will it affect us when trying to find the area of parallelograms?<br />
7. 7. 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. <br />
8. 8. Parallelogramhttp://www.analyzemath.com/Geometry_calculators/parallelogram_1.gif<br />
9. 9. 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.<br />
10. 10. Area of a Parallelogram:Words:Area = base times heightFormula:A = bh<br />
11. 11. Find the area of a parallelogram with a height of 20 m and base of 25 m.<br />
12. 12. Find the area of a parallelogram with a height of 20 m and base of 25 m.20 x 25 = 500 m2<br />
13. 13. Explain how you can find the base of a parallelogram if you know the height and the area.<br />
14. 14. The area of a parallelogram is 84 square feet and the height is 12 feet. What is the base?<br />
15. 15. 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 = b7 = b Base is 7 ft long.<br />
16. 16. Can you calculate the area of parallelograms?<br />