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terrillt63
terrillt63 terrillt63
  • 24-06-2016
  • Mathematics
Answered

A ladder is resting against a wall. The ladder and the ground make and angle of 45° and the ladder is 7 ft from the wall. How long is the ladder

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Kunchan
Kunchan Kunchan
  • 24-06-2016

let's assume the ladder's long as x
 sin 45 = 7/x
1/2^0.5 = 7/x
x = 7*1.414
x = 9.9 m
so long of the ladder is 9.9 m

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Bubba
Bubba Bubba
  • 24-06-2016

The ladder is about 12 ft. long.

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