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Pre-Algebra 8 Online
OpenStudy (anonymous):

I'm really struggling with this question. What is x? (I'll comment the picture) thirty-three degrees forty-three degrees fifty-three degrees sixty-three degrees

terenzreignz (terenzreignz):

...so... you want me to take a guess XD

OpenStudy (anonymous):

|dw:1394549893769:dw|

terenzreignz (terenzreignz):

Fun stuff. Ever heard of the Vertical angle theorem?

OpenStudy (anonymous):

Yeah, but not sure exactly how to use it

terenzreignz (terenzreignz):

You have? Then what does the VAT say?

OpenStudy (anonymous):

Oh btw it isn't 63 (other than that I have no clue, I'm reviewing questions I got wrong on a test)

terenzreignz (terenzreignz):

I don't know. How did you get 63?

terenzreignz (terenzreignz):

Anyway, forget everything else, and just tell me what you know about the VAT.

OpenStudy (anonymous):

I guessed

terenzreignz (terenzreignz):

big no-no okay? so... VAT?

OpenStudy (anonymous):

vertical angles are always congruent

terenzreignz (terenzreignz):

That's good. Now, can you see any angle that is vertical to the angle marked x?

terenzreignz (terenzreignz):

Mark it in your drawing.

OpenStudy (anonymous):

|dw:1394550260388:dw|

terenzreignz (terenzreignz):

that's right. So let's mark that x as well, since it'd measure the same as the angle marked x.|dw:1394550327771:dw|

OpenStudy (anonymous):

66+51= 117

terenzreignz (terenzreignz):

Okay... so far so good, I guess... now if you add x to that, what should it equal to?

OpenStudy (anonymous):

180 -117 ------ 63?

OpenStudy (anonymous):

But 63 is wrong

terenzreignz (terenzreignz):

Well that can't be right.

terenzreignz (terenzreignz):

Who the bloody hell said 63 is wrong?

OpenStudy (anonymous):

It has to add up to 180

terenzreignz (terenzreignz):

We both know that... apparently somebody doesn't. Strange.

OpenStudy (anonymous):

Umm... must be a problem with the grading system

terenzreignz (terenzreignz):

hmm.. you should complain XD

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