Geomtry Interior angles

[AWillingStudent]

I am not sure how I am supposed to do this so I hope someone can help. I am supposed to find the measure of each interior anlge using the given information. then I have a polygon and it has angles A which is 2x-15 degrees, B and D which are both x degrees, and C which is 2x-15 degrees. I think I am supposed put 2x-15+x+2x-15+x, but I am not sure what to do after. I am not sure how to add the terms which is what I think I am supposed to do next.

 

[tkhunny]

Sum of interior angles of a triangle is 180º.
Sum of interior angles of a quadrilateral is 360º. Ponder a square and a rectangle.

Now what?

 

[AWillingStudent]

Sum of interior angles of a triangle is 180º.
Sum of interior angles of a quadrilateral is 360º. Ponder a square and a rectangle.

Now what?

I don't get it what does that have to do with the problem??? *more confused*

 

[Denis]

I think I am supposed put 2x-15+x+2x-15+x, but I am not sure what to do after. I am not sure how to add the terms which is what I think I am supposed to do next.

2x - 15 + x + 2x - 15 + x = 6x - 30
Are you saying you don't know how to do that?
If so, only your teacher can help you.

 

[stapel]

I don't get it what does that have to do with the problem?

The tutor was telling you which aspects of this exercise are helpful for teasing out the solution.

If you're not familiar with the terms "angle sum", "triangle", "quadrilateral", etc (so you can't even see any connection, for instance, between a polygon with four sides and four corners, and a "quadrilateral" with a given interior angle sum), then I'm afraid you need more help than we are able to provide. Sorry!

My best wishes to you!

Eliz.