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# Geometry Item#86

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Item#86 of the Geometry Diagnostic Test (c)2007 by Review Masters League, Inc.

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### Geometry Item#86

1. 1. Geometry Item #86 <ul><li>If a trapezoid has an area of 72 m 2 , one base 10 m long, and another base 8 m long, what is the length, in meters, of its altitude? </li></ul><ul><ul><li>4 </li></ul></ul><ul><ul><li>8 </li></ul></ul><ul><ul><li>12 </li></ul></ul><ul><ul><li>16 </li></ul></ul>www.upcatreview.com
2. 2. www.upcatreview.com 10 meters 8 meters h=? Area =
3. 3. www.upcatreview.com Tip #33: The Answer is in the choices It is sometimes easier to reverse the process. Choose the answer that would fit the solution rather than solving for the right answer.
4. 4. www.upcatreview.com 10 meters 8 meters h=? Area =
5. 5. b 1 = 10 meters b 2 = 8 meters Area = 72 m 2 www.upcatreview.com Area =
6. 6. 72 = Choice A: 4 72 = 9h 72 ≠ 9( 4 ) www.upcatreview.com Area =
7. 7. 72 = Choice B: 8 72 = 9h 72 = 9( 8 ) www.upcatreview.com Area =
8. 8. 72 = Choice D: 16 72 = 9h 72 ≠ 9( 16 ) www.upcatreview.com Area =