EXTENDED RESPONSE You are considering buying a used car. You would like to know whether

Chapter 7, Problem 7.2.39

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EXTENDED RESPONSE You are considering buying a used car. You would like to know whether the frame is sound. A sound frame of the car should be rectangular, so it has four right angles. You plan to measure the shadow of the car on the ground as the sun shines directly on the car. a. You make a triangle with three tape measures on one corner. It has side lengths 12 inches, 16 inches, and 20 inches. Is this a right triangle? Explain. b. You make a triangle on a second corner with side lengths 9 inches, 12 inches, and 18 inches. Is this a right triangle? Explain. c. The car owner says the car was never in an accident. Do you believe this claim? Explain.

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