Trapezoids!

Today in class, we learned about trapezoids, and how they associate with chapter 5.

All trapezoids have one pair of parallel sides, and they are called the bases. The other two sides are called the legs. The bases are often labeled b1 and b2.

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Isosceles Trapezoid:

They carry many of the characteristics that a regular trapezoid does, but in this kind;

• the legs are congruent
• the base angles are congruent
• the diagonals are congruent
• the angles created by a median (below) are congruent
  

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Median:

• Is a segment that extends from one leg of a trapezoid, to the other.
• A median to a trapezoid divides each leg into congruent segments.
• The formula for finding the median of a trapezoid is [(b1+b2)]÷2
• The median is parallel to b1 and b2.
• If you have an isosceles triangle with a median,than all four segments created are congruent.

And now for an informational video!

http://www.youtube.com/watch?v=d8DAYzbmuBE

And the next student scribe is...................











Hollee! Good luck!

-Love Emma, 11/28/11 (my Birthday!!)