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An isosceles triangle of wood of base 10...

An isosceles triangle of wood of base 10 feet and height `(8)/(sqrt3)` feet is placed vertically with its base on the ground and vertex directly above. The triangle faces the sun whose altitude is `30^(@)`. Then, the tangent of the angle at the apex of the shadow is

A

80

B

`(80)/(39)`

C

`(89)/(2)`

D

`(80)/(217)`

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The correct Answer is:
B
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