The answer is D
sorry if i’m wrong
Answer:
1) 38
2) 19
3) 1134
Step-by-step explanation:
Answer:
A — conclusion: the lines are perpendicular and meet at a 90 angle
Answer: x=102
Steps:
This is an isosceles triangle which mean 2 angles and 2 sides are congruent. In this case, the 3.3 sides corresponds to the 39 degree angle. This means that the other angle next to x angle is also 39 degrees.
39+39= 78
All the angles in the triangle needs to equal 180.
So subtract 78 from 180 to find the degree of x angle.
180-78= 102
That would be option A . Note its shifted left 3 not 6 because we have 2x in the parentheses ( 2x + 6) = 2(x + 3)
