Derek wants to determine the height of the top of the backboard on the

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Derek wants to determine the height of the top of the backboard on the basketball goal at the playground. He places a standard 12-inch ruler next to the goal post and measures the shadow of the ruler and the backboard. If the ruler has a shadow of 10 inches and the backboard has a shadow of 8.5 feet, then how high is the top of the backboard?

4 answers

Cross multiply and solve for x

12/10 = x/8.5

x=8.18

its 9.82

its 10.8

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