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lana66690 [7]
3 years ago
12

The horizontal distance between two towers is 80 m. The angle of depression of the top of the first tower when seen from the top

of the second tower is 30o. If the height of the second tower is 160 m, find the height of the first tower.
Mathematics
1 answer:
Yuliya22 [10]3 years ago
8 0
Let the height of the first tower be x, then the second tower is (160 - x) m taller than the first tower. Then
tan 30 = (160 - x)/80
160 - x = 80 tan 30
x = 160 - 80 tan 30 = 160 - 46.19 = 113.8 m

Therefore, the height of the first tower is 113.8 m.
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Answer:

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8 0
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The graph of F(x) shown below resembles the graph of G(x) = x ^ 2 but it has been changed somewhat . Which of the following coul
sukhopar [10]

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5 0
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6 0
3 years ago
Which method used to calculate finance charges is most favorable to the card issuer?
Ivenika [448]
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4 0
3 years ago
Read 2 more answers
Answer???? Angle 1, and angle 2. I need help
REY [17]
M> 1 + m>2 = 90°
x-12 + 5x = 90°
6x - 12 = 90°
6x -12 +12 = 90°+12
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m>2 = 85
7 0
3 years ago
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