Answer:
The value of y is 28.
Step-by-step explanation:
The angles opposite to equal sides of a triangle are equal.
As we are given AC=BC.
Hence, ∠A=∠B.
i.e. 34=x-5
x=34+5=39°.
Hence, ∠A=34° and ∠B=34°.
Also the sum of all the angles of a triangle =180°.
hence ∠A+∠B+∠C=180°
34+34+4y=180°
4y=112 ( As 34+34=68 and then we subtract from 180° since on taking it to the right hand side).
y=28 (Divide both side by 4).
Hence, ∠A=34°
∠B=34°
∠C=112°
Hence, the value of y is 28.
