Question

PLEASE HELP ASAP 20 points possible

Answer 1

123°

Explanation:

Subtract the measures of the given interior angles from 180 to find the measure of the missing interior angle

180 - 60 - 63 = 57°

Subtract 57 from 180 to find the measure of the external angle/angle 1.

180 - 57 = 123°

Answer 2

Answer: 123

Explanation:

60+63=123

180-123=57

180-57=123