AB is a vertical pole with B at the ground level and and A at the top .A man finds that the angle of elevation of the point A from a certain point C on the ground is 60^(@) . He moves away from the pole along the line BC to a point D such that CD = 7 m .From D . the angle of elevation of the point A is 45^(@) .Find the height of the pole .

AB is a vertical pole with B at the ground level and and A at the top

1.	AB is a vertical pole with B at the ground level and and A at the top .A man finds that the angle of elevation of the point A from a certain point C on the ground is 60^(@) . He moves away from the pole along the line BC to a point D such that CD = 7 m .From D . the angle of elevation of the point A is 45^(@) .Find the height of the pole .
Answer» ANSWER :` (7sqrt3)/( 2) (sqrt3+1) `