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26 votes
26 votes
Find the measure of angle b.

Find the measure of angle b.-example-1
User Netiul
by
3.5k points

2 Answers

19 votes
19 votes

Answer:

123+39+b=180 (angle sum of a triangle)

b=180-(123+39)

b=180-162

b=18 °

User Cabo
by
2.9k points
21 votes
21 votes

Answer:

18

Explanation:

180-123-39=18

User Timothy McCarthy
by
2.7k points