a side of the triangle below has been a extended to form an exterior angle of 159°. find the value of x

Step-by-step explanation:

Find the the angle by subtracting 159 from 180 that’s your answer= 21 degrees

no, x cannot be the same number. in all of them, x is 1. for one input there is another output. g is not a function

give brainliest

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.