Complete the proof

Question

Complete the proof

happypotato · Answer

attachment

happypotato · Answer

the question is attached.

happypotato · Answer

@jhonyy9

jhonyy9 · Answer

so what you need to know what angle make the radius with tangent line on the contact point ? 
what measure has this angle ?

happypotato · Answer

Im not sure

jhonyy9 · Answer

np what you think about this ?

mhanifa · Answer

@happypotato it was your previous question, do you remember the angle between the tangent and the radius at same point?

happypotato · Answer

@mhanifa wrote:

@happypotato it was your previous question, do you remember the angle between the tangent and the radius at same point?

I don't know what you mean. Im sorry.

happypotato · Answer

@snowflake0531

mhanifa · Answer

Ok, I'll remind. The angle between the tangent and radius is 90 degrees, in other words, the tangent is perpendicular to radius at the point they meet.

happypotato · Answer

@mhanifa wrote:

Ok, I'll remind. The angle between the tangent and radius is 90 degrees, in other words, the tangent is perpendicular to radius at the point they meet.

Cool! How does that answer my current question though?

mhanifa · Answer

Can you tell which lines are perpendicular?

happypotato · Answer

not really

happypotato · Answer

i just need to enter the proof for this question

mhanifa · Answer

AC is perpendicular with AB. Can you name the other perpendicular lines?

mhanifa · Answer

You should try to help yourself.

happypotato · Answer

Thank you that's what Im trying to do by asking for help.

happypotato · Answer

no i cannot name the other perpendicular lines. im sorry

mhanifa · Answer

BD is perpendicular with AB.

mhanifa · Answer

So we have:
Both AC and BD perpendicular with AB. Does it tell you something?

happypotato · Answer

i'm not sure...

happypotato · Answer

i'm sorry

Florisalreadytaken · Answer

just to prove the theorem, think of it like this -- a circle inscribed inside a square -- 
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Florisalreadytaken · Answer

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what if you would cu t the square in 4 bits?

the tangent and the 'radius' of that square form a $ 90^\circ  $ angle

that is exactly the same for a circle -- yes?

happypotato · Answer

yes i believe so

Florisalreadytaken · Answer

great, so you should be able to understand the theorem by now

happypotato · Answer

Awesome! Thank you! And what should I write as the proof??

Florisalreadytaken · Answer

well, thats for you to work out -- but i hardly suggest mentioning the tangent-and-radi theorem

since the angle is 90 degree on both of them it means a straight angle is going to form  on the top, and there at the bottom $  ( 90^\circ+ 90^\circ=  180^\circ)  $ so yeah two parallel lines , or straight angles are formed ()

happypotato · Answer

Thank you so much for your help but I sadly don't understand it. Thank you anyways!

happypotato · Answer

@jhonyy9 could you help me out?

jhonyy9 · Answer

do you know when are two lines parallele ?

happypotato · Answer

yes

jhonyy9 · Answer

@extrinix  any idea here ?

Florisalreadytaken · Answer

i mean i have never seen a person match this much to his username

how on earth do you not understand that?

jhonyy9 · Answer

@florisalreadytaken wrote:

Created with Raphaëlradiusthat is calleda tangentlineReply Using Drawing what if you would cu t the square in 4 bits? the tangent and the 'radius' of that square form a $ 90^\circ $ angle that is exactly the same for a circle -- yes?

here is the best explained to you on this image

happypotato · Answer

@florisalreadytaken listen there is no reason to be plain rude like that! People have different strengths and weaknesses. How do you not understand that? That's the whole point of this website. To help people who may have a weakness in a certain area. I guarantee you that there are things I understand that you wouldn't. And that's okay! You don't have to be so damn rude just because I have trouble understanding something. Math isn't my strength and I'm okay with that.

happypotato · Answer

@jhonyy9 wrote:

@florisalreadytaken wrote:

Created with Raphaëlradiusthat is calleda tangentlineReply Using Drawing what if you would cu t the square in 4 bits? the tangent and the 'radius' of that square form a $ 90^\circ $ angle that is exactly the same for a circle -- yes?

here is the best explained to you on this image

Thank you for being kind and willing to help

jhonyy9 · Answer

how are the opposite sides of a square ? are parallele - yes ?

so two adjacent sides of a square what angle create ? - right angle

what result from these ?

Florisalreadytaken · Answer

you called it -- helping people in their weaknesses -- being a donut for not understanding something explained quite well, hey thats not my fault -- as you can see all 3 people are telling you the same exact thing. :)

happypotato · Answer

And it's more than completely okay that I still dont understand it. Maybe the way that youre explaining it doesnt make sense to me. @florisalreadytaken .

happypotato · Answer

@jhonyy9 wrote:

how are the opposite sides of a square ? are parallele - yes ? so two adjacent sides of a square what angle create ? - right angle what result from these ?

I don't quite understand your question?

happypotato · Answer

But I won't bother you anymore so you can leave it :)

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