Question

Polygon help please.?

Answer 1

If you post the question people may be able to help.

Answer 2

I'm not asking for the answer straight out. I would like your help so I can understand for future tests. @aum

Answer 3

The four internal angles of a quadrilateral adds to 360 degrees.

Answer 4

4 sides but 1 is slightly slanted...

Answer 5

So, how do I find "x"?

Answer 6

u have a protractor?

Answer 7

Add the 4 angles given and equate it to 360.
110 + (x + 10) + x + 90 = 360

Answer 8

Can you solve the above equation for x?

Answer 9

No I don't. @SethK
Is it 150? @aum

Answer 10

110 + (x + 10) + x + 90 = 360
2x + 210 = 360
2x = 360 - 210 = 150
x = 150/2 = 75

Answer 11

So x is 75?

Answer 12

Yes. But they want angle K. angle K = x + 10 = 75 + 10 = 85 degrees.

Answer 13

Oh, well that makes more sense. I've had a hard problem with this question I didn't understand. Now I do. So thank you :)

Answer 14

They want you to show each step. So your answer can be:

The four angles of a quadrilateral add to 360 degrees.
Therefore, angle J + angle K + angle L + angle M = 360 degrees.
Substituting for the angles we get:
110 + (x + 10) + x + 90 = 360
2x + 210 = 360
subtract 210:
2x = 360 - 210
2x = 150
divide by 2
x = 150/2 = 75

angle K = x + 10 = 75 + 10 = 85 degrees.

You are welcome.