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PLEASE HELP ME!! A section of a highway is constructed with a 23% grade. What angle does the highway make with a horizontal line? Round to the nearest hundredth of a degree.

m∠A ≈ 12.95°

m∠A ≈ 77.05°

m∠A ≈ 14.95°

m∠A ≈ 87.05°


PLEASE HELP ME A Section Of A Highway Is Constructed With A 23 Grade What Angle Does The Highway Make With A Horizontal Line Round To The Nearest Hundredth Of A class=

Sagot :

Answer: 77.05

Step-by-step explanation:    1) Draw a right triangle with these measures:

angle with the horizontal: 6 degress

horizontal segment: 5

height: x

2) Definition of tangent : tan(6°) = opposite leg / adjacent leg = x / 5 =>

3) Solve for

x = 5tan(6°) = 77.05