In triangle ABC, the exterior angle at C
has a degree measure of 140, and
mZA = 80. What is the degree measure
of ZB?

no this is a nonlinear negative

here is your mark brainliest

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x