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miskamm [114]
3 years ago
12

Find y. Round to the nearest tenth: 31° y X 400 ft y = [? ]ft

Mathematics
1 answer:
marin [14]3 years ago
6 0

Answer:

y = 240.3 ft

Step-by-step explanation:

Use trigonometric ratio to find y:

Thus,

Reference angle = 90° - 31° = 59°

Opposite = 400 ft

Adjacent = y

Therefore:

Tan 59° = 400/y

Multiply both sides by y

y*tan 59 = 400

Divide both sides by tan 59

y = 400/tan 59

y = 240.3 ft (to the nearest tenth)

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