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Thursday, December 14, 2006

stuff about circles.....cont'

Today in math class Mr. Maksymchuk kept teaching stuff about circles on euklid. And he said some stuff about technology beacause some guys came in and talked in the back of the room. He said that one day he will make graphing caculators unused. Number four is,
4. If in a circle a radius or diameterintercepts a chord at a right angle, then the chord os bisected at the point on intersetion** the convers is true**
**the radius/diameter is called a perendicular bisector**
5. If a line is tangent to a circle, then the tangent line is perpendicular to the radius diamert at the point of tangency. ** the convers is true**
6. if tanget lines to the same circle intercecting a common external point then, the segment created from the circle to the common external points are congruent.
and thats about it i think, so have a nice day.

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