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kiruha [24]
3 years ago
12

An 18-feet ladder is leaning against the side of a building. The angle between the ladder and the ground is 30°.

Mathematics
1 answer:
Step2247 [10]3 years ago
5 0

9514 1404 393

Answer:

  9 feet

Step-by-step explanation:

The sine relation applies.

  Sin = Opposite/Hypotenuse

  sin(30°) = height/(18 ft)

  height = (18 ft)sin(30°) = (18 ft)(1/2)

  height = 9 ft

The ladder extends 9 feet up the side of the building.

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