Question

Please explain your answer to the question in the picture in steps, thank you.

Answer 1

answer is 51⁰

Explanation:

from the diagram, angles 2 and 1 are complementary

<2 + <1 =90⁰

39⁰+<1=90⁰

<1 = 90⁰ - 39⁰

<1 = 51⁰