Angle CBA is congruent to angle GEF
Answer:
y¹⁵-20y¹⁴
Step-by-step explanation:
I'm going to assume that your problem looks like this


which means we have

Answer: isosceles
Step-by-step explanation:
By the alternate interior angles theorem, 
Since angles in a triangle add to 180 degrees, 
Since sides opposite equal angles in a triangle are equal,
.
So, triangle ABC is <u>isosceles</u>
So 6 times 6 is 36 so 36 possibilities and the number that add up to 3 or nine are (2,1; 3,6; 4,5;) so 3 out of 36 or 1 out of 12, the answer is not there