Question

the first angle of a triangle is double the second angle.the third angle of the triangle is 12 degrees is less than the second angle.let the second angle=x

Answer 1

first angle = 2x
third angle = x-12

so x + 3x + (x - 12) = 180
- solve

Answer 2

make shore u do the problime in the right order thow

Answer 3

sorry thats
x + 2x + x -12 = 180
4x = 192
x = 48 degrees = second angle
i expect you can now find the other angles