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HACTEHA [7]
2 years ago
9

An operator at the top of a lighthouse sights a sailboat. The point from which the sighting is made is 25 m above sea level. The

angle of depression of the sighting is 10 degrees. How far is the boat from the base of the lighthouse?
Mathematics
1 answer:
Aneli [31]2 years ago
4 0

Answer:

141.78 m

Step-by-step explanation:

Let d = distance of boat from the base of the lighthouse

Tan 10 = 25/d

d tan 10 = 25

d = 25/tan 10

d = 141.78 m

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3 years ago
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****BRAINLIEST GOES TO THE FIRST CORRECT ANSWER****
monitta

2x =50 since it is an isosceles triangle

x =25


the sum of all angles in a triangle is 180

5y + 10 + 50 + 2x=180

5y + 10 + 50 +50 =180  because  2x = 50

combine like terms

5y +110 = 180

subtract 110 from each side

5y = 70

y = 14

8 0
3 years ago
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