#### Jomo

##### Elite Member
In case you did not realize it, but this is a math help site. We help students solve their math problems but we never would consider solving a problem for a student as this will not help them. If you had read the forum's guidelines you would have known this.

Hint: Why did you write 72 on the diagram? How many degrees all the way around?

#### nasi112

##### Full Member
between M and N, there is $$\displaystyle x^o$$, and between P and R, there is also $$\displaystyle x^o$$

now, you should do the counting. sum of all of them $$\displaystyle = \ ?$$