From the peak of a hill which is 300m high, the angle of depression of two sides of a bridge lying on a ground are 45 and 30 (both ends of the bridge are on the same side of the hill). Then the length of the bridge is

From the peak of a hill which is 300m high, the angle of depression of

1.	From the peak of a hill which is 300m high, the angle of depression of two sides of a bridge lying on a ground are 45 and 30 (both ends of the bridge are on the same side of the hill). Then the length of the bridge is
A.	300 3 m
B.	$${300 over 3}m $$
C.	300( 3-1) m
D.	300( 3+1) m
Answer» D. 300( 3+1) m

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From the peak of a hill which is 300m high, the angle of depression of two sides of a bridge lying on a ground are 45 and 30 (both ends of the bridge are on the same side of the hill). Then the length of the bridge is

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