Question

What is the correct choice ?

Answer 1

Answer:C

Explanation:

y + y+ 30 + 40 = 180 the three angles added together = 180

2y + 70 = 180 subtract 70 from both sides

2y = 110 divide by 2 on both sides

y =55

Answer 2

Answer:C - 55

Explanation:

Beacuse à triangle is equal to 180 and so you add 40 and 30 then you subtract that with 180 and divided it by two since y is the same number.

Hope this helped :) I tried my best to explain it