Question

How do I find the answer?

Answer 1

The sum of all angles in a triangle is 180 degrees, add all the angles in the picture (which is 129) and then have 180 subtract by that (180-129) which is 51

Answer 2

51 degrees

Explanation:

the sum of all angles in a right triangle is 180 degrees.

we know two of the three angles

90

39

therefore we take

180 - 90 - 39 = 51