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2 June, 13:47

Your brother lies down at the ground level and uses a protector to measure the angle of elevation of the wall he finds its at 72° he is lying 12 feet 3 inches away from the rock wall what method is he using to approximate the height of the rock wall? Use this method to approximate the height of the rock wall

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  1. 2 June, 16:33
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    Hes using trigonomtery of a right angled triangle.

    tan 72 = x / 12.25 where x = height of the wall

    x = 12.25 * tan 72 = 37.7 feet
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