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A ladder 5m long rests against a house and makes an angle of 720 with the ground. How far does the ladder reach up the wall?
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A ladder 5m long rests against a house and makes an angle of 720 with the ground. How far does the ladder reach up the wall?

User Cylian
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1 Answer

7 votes
Um the angle is 72. No ladder can make an angle of 72. Anyway trigonometry is the only way to solve this.

The function is sin. Sin(72)= opposite/5(hypotenuse)
5sin(72)=4.76 metres to 2 decimal places
User Mmalmeida
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