Question

A right triangle has one angle that measures 77°. What is the measure of the other acute angle?

Answer 1

Solution
Angle ABC +angle ACB +angle BAC=180
90+77+angle BAC
Angle BAC =180-167
Answer=13

Answer 2

Since the sum of angles in a triangle is 180 degrees, the third angle in the right triangle must be 90 degrees. Therefore, the other acute angle can be found by subtracting 77 degrees from 90 degrees:

90° - 77° = 13°

So the measure of the other acute angle is 13 degrees.

Explanation:

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