geometry problem | questionnaire 005

[DanielRiesTorres]

Hello first of all I must say that english is not my native lengauge and 've searched an answer to this problem which i'm sure is not hard i'm sure i've missed somthing.

The problem:

ABC is a isosceles triangle which is circumscribed with a circle .the points M and N are the middle of the arcs AC and AB). MN is a chord that cuts the AB (side) in the point E and also cuts AC(side) at the point F
IMAGE:
http://www.uploadfileyou.com/viewer.php ... lvb2bl.jpg
Prove that:

a: ^ NFC=~ to ^ MEB
b: BEFC is a isosceles trapezoid

thanks and sorry for the english.

 

[stapel]

...english is not my native lengauge....

Unfortunately, mathematics depends on definitions and terms. Lacking those, it is difficult, if not impossible, to proceed.

When you say "blocked by", I believe you mean "circumscribed with". When you say "rainbows", I believe you mean "arcs". But I'm afraid I have no idea what you might mean by "accorded".

When you use the notation "=~ to", I think you mean "congruent to". Is the carat symbol (the " ^ " symbol) being used to mean "angle"?

Thank you.

Eliz.

 

[DanielRiesTorres]

you have noticed well. the "^" means triangle
and dont pay attention to acroded

 

[stapel]

Did I guess your other meanings correctly?

Also, what have you tried so far? Where are you stuck?

Please be complete. Thank you!

Eliz.

 

[DanielRiesTorres]

here wht ive done so far: http://www.uploadfileyou.com/viewer.php ... z7vnw7.jpg

equal arcs means equal angles and thier is somthing that says if you have a square which is inscribed with a circle it has
<X+<Y=180 but i donno if i can use it here and i donno how do i prove that somthig is not | |