Question

quick tangent line help?

Answer 1

Whats the question?

Answer 2

Assume that lines that appear tangent are tangent. Point O is the center of the circle. find X. M<0=145 degrees

325
35
290
72.5

I got 72.5

Answer 3

i have a few actually i am really horriblwe at geometry and my teacher will not help me AT ALL lol

Answer 4

What do you mean by "M"? Also, on that note, what do you mean by "M<0=145"?

Answer 5

YES

Answer 6

idk about the m tho all is says is M<O=145

Answer 7

Mmk, I ask because if the angle within the circle is 145 degrees, I think there was a property that said whenever a picture like that occurred, the outer angle is half the inner. If this is true, that the inner angle is 145 degrees, then half that would be 72.5 degrees.

Answer 8

But those are my 2 cents; I'm not the greatest at geometry. In fact, the only thing that I remember (and actually use) is the VACT (vertical angle congruence theorem).

Answer 9

ok so its half on the inner line?

Answer 10

can you help me some more?

Answer 11

Sorry, open study d/c'ed on me... The property that I was thinking of was that the degree itself (the inner degree) was equal to twice the outer degree (the angle physically outside the circle, not the line itself). I could be totally wrong, for I am not proficient in geometry.

Answer 12

lol sorry im really nervous my semester is almost over and i need all the help i can get!

Answer 13

No problem. This is what i think the property is; if it contradicts anything you've learned so far, then I'm wrong:
What I think is that the outer angle, the one formed by the two tangent lines, is equal the half the inner angle, the 145 degree angle.