I really need help in finding the measure of the angle of a triangle some have the outside degree but some are inside and some have a question mark how do I do this
The three inside the triangle must add up to 180 degrees so if two of them are 50 degrees and 70 degrees the third one would be 60 degrees to make 180.
If an angle is outside the triangle, the one inside it the triangle would be 180 minus that angle. If , for example, it is 140 defrees, the adjacent one inside is 180 -140 =40 degrees.
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