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Posted by on Monday, February 21, 2011 at 7:49am.

The present height of the pyramid of Khafre in Egypt is 137m.An engineer surveying pyramid measures an angle of elevation of 33degrees from a point X to the top of the pyramid. Calculate the distance from X to the cenre of the base of the pyramid at Y

  • GEOMETRY - , Monday, February 21, 2011 at 8:33am

    Assuming the point X is on ground which is level with the base of the pyramid, this would be just a case of
    finding the distance d, where
    tan33° = 137/d or
    d = 137/tan33° m

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