Posted by **anonymous** on Wednesday, July 21, 2010 at 4:11pm.

Montreal’s Marathon building is 195m tall. From a point level with, and 48m away from, the base of the building, what is the angle of elevation of the top of the building, to the nearest degree?

- Math -
**Henry**, Wednesday, July 21, 2010 at 4:50pm
The height of the building represents

the vertical leg of a rt. triangle, and

the hor dist. from the bottom is the hor. leg of the rt. triangle. The line

of sight from the end of the 48m line

to the top of building is the hyp. The

angle of elevation is the acute angle

between the hyp. and the hor. leg.

TanB = Y/X = 195/48 = 4.06, B = 76.2

deg. = angle of elevation.

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