The answer is 76 and 76 and 28 and 124. All angles of a triangle adds up to 180 degrees. Two angles of an isosceles triangle are congruent or equal to one another.
The measurements of a triangle add up to be 180.
a+b+c=180
(118)+(23)+c=180
141+c=180
c=39
your answer is B. 39
68 is the mode of the data set.
