Question

How do you do this and what is the answer

Answer 1

Using angle sum of triangle
105°+48°+x=180°
x=27°

Answer 2

x = 27

Explanation:

The sum of the angles of a triangle is 180.

180 = 105 + 48 + x

x = 180 - (105 +48)

x = 180 - 153

x = 27 degrees