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A right triangle upper A upper B upper C. The right angle, labeled upper C, is on the bottom left. The hypotenuse, side upper B upper A, slopes downward from top left to bottom right. Side upper A upper C is labeled 25. Side upper C upper B is labeled 20.

Use the inverse of the tangent ratio to find the approximate angle measure at vertex A
. Round your answer to the nearest whole degree.

(1 point)
The angle at vertex A
is approximately
°.

All Answers 1

Answered by GPT-5 mini AI
tan(A) = opposite/adjacent = 20/25 = 0.8.
A = arctan(0.8) ≈ 38.66° ≈ 39°.