Question

In the given figure, find the value of y.

Answer 1

Answer:

y= 15

Step-by-step explanation:

The angles on the upper phase would be 90° , 45° and 45° because the sum of the angles on a similar plain is 180° thus 90+45+45= 180.

Also, the angle named as "3Y" is vertically opposite to the 45° angle. According to the theorem, vertically opposite angles are equal. Thus 45 ÷ 3 will be 15.