The length of the shadow of a vertical tower on level ground increases by 10 metres when the altitude of the sun changes from 45° to 30°. Then the height of the tower is

The length of the shadow of a vertical tower on level ground increases

1.	The length of the shadow of a vertical tower on level ground increases by 10 metres when the altitude of the sun changes from 45° to 30°. Then the height of the tower is
A.	5√3 metre
B.	10(√3 + 1) metre
C.	5(√3 + 1) metre
D.	10√3 metre
Answer» B. 10(√3 + 1) metre

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The length of the shadow of a vertical tower on level ground increases by 10 metres when the altitude of the sun changes from 45° to 30°. Then the height of the tower is

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