Triangle a b c extended to both sides from corners a and b. d is a point closer to point a on the extended line. angle c is located on the top. the measure of angle c is 80âº, the measure of ∠ cba is 20âº. what is m∠ cad? a) 20⺠b) 80⺠c) 100⺠d)110âº

Step-by-step explanation:

Triangle A B C extended to both sides from corners A and B. D is a point closer to point A . Angle C is located on the top of the triangle.

The diagram is attached below

In a triangle , external angle = sum of two opposite interior angles

so  

the probability is 0

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0