Answer:
y=28
Step-by-step explanation:
1. As ABC is an isosceles triangle, that means that angle A is congruent to angle B, which means angle B measures 34˚.
2. The sum of the angles of a triangle add up to 180˚. So, make an equation:
A+B+C=180
As we already know A and B, plug them in:
34+34+C=180
Then solve:
C=112˚
3. As we know that C=4y, we can solve for y: 112/4=28
