Monday, March 06, 2006

The things we learned today

We talked about 5 different angles and 2 other ones.

A straight angle is any angle that is exactly 180 degress.
A Reflex angle is any angle that is greater than 180 and less then 360 degress.
A right angle is any angle that is exactly 90 degress.
A Obtuse angle is an angle that is greater than 90 and less than 180 degress.
A acute angle is any angle that measures between 0 and 9 degress.

The other 2 angles are:
The complementary angle is any 2 angles that add up to 90 degress.This is really a right angle.
The supplementary Angle is two angles that add up to 180 degress.

Also the dot in every angle is called a vortex.

Point: A geometric element that indicates position, but has no size.( you cannot measure a point.)

After we talked about Line.

Line:Are set of points in a straight line. They extend forever in both directions.
Ray: A set of points that form a straight line. A ray starts st a point and extends fovever in one direction.
Line segment: Part of a line with two end points

Thats all we did in class.




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1 Comments:

At 6:25 AM, Blogger Mr. Reece said...

Not too bad Francis, but you never included how we write the angles. For an example of this go and check out this Scribe Post http://spmath772.blogspot.com

Mr. R

 

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