adaneri1234
24.02.2020 •
Mathematics
You are standing on a small fire tower 50 feet from a tree. You notice a squirrel in the tree. You measure the angle of depression to the base of the tree to be 52∘. The squirrel is at an angle of elevation of 21∘. How many feet off the ground is the squirrel?
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Ответ:
44.81 feet
Step-by-step explanation:
see the attached figure to better understand the problem
step 1
In the right triangle ACD
Find the length side AC (height of the small fire tower)
---> by TOA (opposite side divided by the adjacent side)
Solve for AC
step 2
In the right triangle ABE
Find the length side AB
---> by TOA (opposite side divided by the adjacent side)
solve for AB
step 3
How many feet off the ground is the squirrel?
Subtract the length side segment AB from the length side segment AC
so
Ответ:
they will need 18 tokens each because 2 + 3 + 4 x 2 = 9