SOLUTION: A projector is 40 m from the middle of a screen which is 15 m high. How much further away from the projector is the top edge than the centre of the screen?

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Question 1074003: A projector is 40 m from the middle of a screen which is 15 m high. How much further away from the projector is the top edge than the centre of the screen?
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
From middle of the screen to top of the screen is 15%2F2 meters.
h%5E2=%2815%2F2%29%5E2%2B40%5E2

h=sqrt%28%2815%2F2%29%5E2%2B40%5E2%29

Question asks for h-40
sqrt%287.5%5E2%2B40%5E2%29-40
40.697-40

0.7, about 0.7 meters difference