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# A man observes the top of a building with an angle of elevation $\;45^{0}\;$ from a distance of 30 m from the building . What is the height of the building ?

$(a)\;15\;m\qquad(b)\;45\;m\qquad(c)\;60\;m\qquad(d)\;30\;m$

Answer : $\;30\;m$
A man observes the top of a building with an angle of elevation $\;45^{0}\;$ from a distance of 30 m from the building .So the height of the building is 30 m .