Question

I have a question, How do I do this? example: a triangle ABC, a : 50° b: 60° c: 50°, then what is D? I need explanation for this, not answer.​

Answer 1

20 degrees

Explanation:

when you add 50+60+50 you get 160 and a triagnle has to have 180 degrees and when you have 50+60+50+20 you get a total of 180 degrees