find x -
a triangle has 3 meausers
100, 40 and 2x
To find x, we can use the fact that the sum of the measures of angles in a triangle is always 180 degrees.
So, we have:
100 + 40 + 2x = 180
Combine like terms and isolate x:
140 + 2x = 180
Subtract 140 from both sides:
2x = 180 - 140
2x = 40
Divide both sides by 2:
x = 40/2
x = 20
Therefore, x is equal to 20.