emm16045
12.03.2021 •
Mathematics
1/20 scale model (1 in. = 20ft) of an airplane has a wingspan of 18 inches. What is the wingspan of the actual airplane in feet? The wingspan is..?
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Ответ:
see the attached figure to better understand the problem
we know that
the law of sines states that
in this problem we have
step 1
find the measure of angle s
applying the law of sines
substitute the values
step 2
find the measure of angle q
we know that
the sum of the internal angles of a triangle is equal to degrees
solve for q
substitute
step 3
find the measure of line segment rs
applying the law of sines
substitute
therefore
the answer is
the length of line segment rs is