Help figuring these out?

If each interior angle of a regular convex polygon is three times the measure of each exterior angle, what kind of polygon is it?

A baseball diamond’s home plate has three right angles. The remaining two angles are congruent. What are their measures?

Question

Help figuring these out?

If each interior angle of a regular convex polygon is three times the measure of each exterior angle, what kind of polygon is it?

A baseball diamond’s home plate has three right angles. The remaining two angles are congruent. What are their measures?

mertsj · Answer

Let x= measure of interior angle
Then 180-x = measure of exterior angle
Interior = 3 times exterior
Write and solve the equation.

anonymous · Answer

how would I do that?? work backwards like, 
exterior/x
and then what.. sorry I'm getting confused.

and what kind of polygon would that make it?

anonymous · Answer

@Mertsj

mertsj · Answer

It say that the interior angle is 3 times the exterior angle.  
The interior angle is x
The exterior angle is 180-x
Substitute.