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A ladder leans against a wall making an angle of 73 degress with the ground The ladder's base is 1.17m away from the wall Determine the length of the ladder?
Wiki User
∙ 14y ago
Providing that the ground is level and that the wall is straight, you have the outline of a right angled triangle with an adjacent angle of 73 degrees and an adjacent length of 1.17 metres. In order to find the length of the hypotenuse (which is the ladder itself) we use the cosine ratio:
cosine = adjacent/hypotenuse
Which when rearranged is:
hypotenuse = adjacent/cosine
hypotenuse = 1.17/cosine73 degrees = 4.001755235
So the length of the ladder is 4 metres correct to one significant figure.
Wiki User
∙ 14y ago
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What is the answer to A 15-m long ladder rests against a wall at an angle of 60 degrees with the ground How far is the foot of the ladder from the wall?
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