A person observes the angle of elevation of a building as 30°. The pe – McqOptions

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1.	A person observes the angle of elevation of a building as 30°. The person proceeds towards the building with a speed of \[25(\sqrt{3}-1)m/hour.\]After \[2\,hours\], he observes the angle of elevation as 45°. The height of the building (in meter) is [UPSEAT 2003]
A.	100
B.	50
C.	\[50(\sqrt{3}+1)\]
D.	\[50(\sqrt{3}-1)\]
Answer» C. \[50(\sqrt{3}+1)\]

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