Find BC

Mathematics

2 answers:

Paha777 [63]3 years ago

7 0

The graphic says find BC and it says BC = 33 feet
Anyway, assuming the ladder is 34 feet, and makes an 82 degree angle,
cosine 82 degrees = adjacent / hypotenuse
adjacent = cosine 82 degrees * hypotenuse
adjacent = 0.13917 * 34
adjacent (or side BC) = 4.73178 feet

height (line AB) = sine (82 degrees) * hypotenuse (34 feet)
height (line AB) = 0.99027 * 34
height (line AB) = 33.67 feet

topjm [15]3 years ago

3 0

If the bottom side is ab then bc is 8.18535277, which to the nearest tenth is 8.2

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