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16 December, 10:36

Brian wants to build a ramp that leads to a storeroom 5 meters above the ground. He wants the ramp to be 10 meters long. What should the angle of elevation of the ramp be?

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  1. 16 December, 11:51
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    The angle of elevation is 26.5650 (3dp)

    Explanation:

    Let h be the end height of the ramp above the ground, l be the length of the ramp and the angle of elevation is θ∴ tanθ = hl = 510 = 0.5∴θ = tan - 1 (0.5) = 26.5650 (3dp) [Ans]
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