Question

the diagram shows a convex polygon.
what is the value of y?
y = \square^\circ

Explanation:

Step1: Sum of triangle angles

The sum of angles in a triangle is $180^\circ$.

Step2: Set up equation

$72 + y + 2y = 180$

Step3: Simplify and solve

$72 + 3y = 180$ → $3y = 108$ → $y = 36$

Answer:

36