Answer:
A
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 angles and equate to 180, that is
x + 2x + 3x = 180
6x = 180 ( divide both sides by 6 )
x = 30 → A
A) 30
The sum of all of the angles in a triangle have to equal 180 degrees.
Plug in 30 for x
3(30) = 90
2(30) = 60
(30)= 30
90+60+30= 180
Therefore x=30 degrees
