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  • 10-06-2020
  • Mathematics
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The bottom of a ladder must be placed 3 ft. from a wall. The ladder is 12 feet long. How far above the ground does the ladder touch the wall? Round your answer to the nearest tenth.

The bottom of a ladder must be placed 3 ft from a wall The ladder is 12 feet long How far above the ground does the ladder touch the wall Round your answer to t class=

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musiclover10045
musiclover10045 musiclover10045
  • 10-06-2020

Use the Pythagorean theorem to solve.

Height = sqrt(12^2 -3^2)

Height = sqrt(144-9)

Height = sqrt(135)

Height = 11.6189 = 11.6 feet

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