Answer:12.59
Step-by-step explanation:
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From the diagram you can see that we have constructed a right triangle, with height A and base 15.
Length of shadow = 15 feet.
Height of flagpole = A.
We know the angle of elevation is
40
∘
. Using this angle and the tangent ratio, we can find A.
tan
(
)
=
opposite
adjacent
A
15
∴
Rearranging:
By calculator:
12.59
feet. ( 2 d.p.)
Answer:
2.option is the correct answer
7/5 78998 7.8.9 +.77 11132
DC is equal to 180°, so subtract 105 from 180.
180-105=75
180 is the total of the the angles when added together.
67°+75°=142
180-142=38
x=38
you gotta go to school
