# Missing Third Angle by Helen Yu tags: algebra, numbers, math ## Summary > You are given 2 out of 3 of the angles in a triangle, in degrees. > Write a function that classifies the missing angle as either "acute", "right", or "obtuse" based on its degrees. > An acute angle is less than 90 degrees. > A right angle is exactly 90 degrees. > An obtuse angle is greater than 90 degrees (but less than 180 degrees). > For example: missingAngle(11, 2 ## Instructions You are given 2 out of 3 angles in a triangle, in degrees. Write a function that classifies the missing angle as either `"acute"`, `"right"`, or `"obtuse"` based on its degrees. - An **acute** angle is less than 90 degrees. - A **right** angle is exactly 90 degrees. - An **obtuse** angle is greater than 90 degrees (but less than 180 degrees). For example: `missingAngle(11, 20)` should return `"obtuse"`, since the missing angle would be 149 degrees, which makes it obtuse. ### Examples ``` missingAngle(27, 59) ➞ "obtuse" missingAngle(135, 11) ➞ "acute" missingAngle(45, 45) ➞ "right" ``` ### Notes The sum of angles of any triangle is always 180 degrees.