an 8 feet ladder leans against the side of a house. how far is the bottom of the ladder from the side of the house when the angl
e of elevation of that ladder is 61 degrees? round your answer to the nearest tenth.
1 answer:
Answer:
Since it's a right angled triangle,
taking 61 as reference angle,
cos61 = b/h
or, cos61 = b/8
or, b = cos61.8
so, b = 3.9 feet
The bottom of the ladder is 3.9 feet away from the side of the house.
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