The value of x is 47.
The correct answer is option (B).
"It is formed when two straight lines meet at a common endpoint."
"It is a three-sided polygon that consists of three edges and three vertices."
For given example,
We have been given the angles x, 2x, 39
(Assuming these angles are the three angles of a triangle)
We know, the sum of all angles of the triangle is 180°.
⇒ x + 2x + 39 = 180°
⇒ 3x + 39 = 180°
⇒ 3x = 141
⇒ x = 141/3
⇒ x = 47
Therefore, the value of x is 47.
The correct answer is option (B).
Learn more about triangle here:
https://brainly.com/question/27682397
#SPJ2
