Question

What is the value of y?
y - 12
56
#
Choice
A.
56°
B.
1120
C.
440
D.
68°

Answer 1

9514 1404 393

Answer:

  D.  68°

Step-by-step explanation:

The sum of angles in a triangle is 180°, so ...

  y° +(y-12)° +56° = 180°

  2y = 136

  y = 68

The angle marked y° is 68°.