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3 years ago

I need the answer ....

Mathematics

1 answer:

vladimir1956 [14]3 years ago

3 0

Answer:

12.5 feet

Step-by-step explanation:

how to:

lets find the angle that corresponds with the 10 foot side.

to do that we add 50 degrees plus 90 degrees (right angle) to get 140 degrees.

as we know, a triangles angles will total 180 degrees, so 180 - 140 = 40 degrees for the angle corresponding to the 10 foot side.

put these into ratios:

<u>Angle A </u> = <u>Angle B</u>

side a side b

now plug in our numbers:

<u>50 degrees</u> = <u>40 degrees</u>

X 10 feet

Cross multiply:

50 (10 feet) = 40 (x)

solve for x:

500 = 40 (x)

500/40 = x

12.5 = x

<u />

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