Question

Does anyone know this?

Answer 1

Answer: 130


They need to add up to be 180., the angles inside the triangle also need to add up to 180, (50 + 63 = 117) (180 - 117 = 50) So, 50 is angle 2. (180 - 50 = 130) 130 is angle 4

Answer 2

=180-(180-(63+50))

Explanation:

that's how you do it