17. SOLVING WORD PROBLEMS (SOH-CAH

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Transcript 17. SOLVING WORD PROBLEMS (SOH-CAH

SO
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Right Triangle
Trigonometry
Word problems
Your calculator should be in
DEGREE MODE
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X = 10.03
y= 11.13
A surveyor is standing 50 feet from the base of a large tree.
The surveyor measures the angle of elevation from where he stands to the
top of the tree as 71.5°. How tall is the tree?
opp
?
h = 149.43ft
71.5°
50 ft.
adj
toa
Spencer, in a park ranger’s observation station 50 feet above the
ground, spots a fire in the forest. If the angle of depression from
Spencer to the fire is 5, how far is the fire from the base of the
station?
5°
FIRE
Curran’s
observatory
?
opp
X = 571.50ft
toa
50ft adj