Thursday, January 29, 2009

Chapter 6 Test

I hope you did well on your test today!

Puzzling Friday tomorrow!

Monday, January 26, 2009

6-9 Congruent Poygons

Polygons that have the same side lengths and the same angle measures.

3 motions include: TRANSLATION - ROTATION - REFLECTION

Triangles can be proven congruent based on:

SIDE - ANGLE - SIDE

ANGLE - SIDE - ANGLE

SIDE - SIDE - SIDE

Please review Chapter 6 concepts...our Chapter 6 test will be on Thursday!

Friday, January 23, 2009

6-8 Polygons and Their Perimeters

POLYGON is a closed figure consisting of line segments joined at their endpoints.

The points are VERTICES and the segments are SIDES.

PENTAGON - 5 sides, HEXAGON - 6 sides, OCTAGON - 8 sides, DECAGON - 10 sides

PERIMETER of a polygon is the sum of the lengths of the sides.

If all sides and all angles of a polygon are CONGRUENT, the polygon in called REGULAR

Thursday, January 22, 2009

Points, Lines, and Rays Packet

Please complete the 4 page packet for class tomorrow!( Friday Jan 23)

Please make sure that you have spelled everything correctly.

You do not have to MEASURE any of the angles despite the instructions.

This material will make up one third of next week's test on Chapter 6 so please make sure that you understand everything. If not, come see me in the morning!

Wednesday, January 21, 2009

6-7 Special Quadrilaterals

QUADRILATERAL is a 4 - sided closed figure.

PARALLELOGRAM has 2 pairs of parallel sides, opposite sides are congruent, and opposite angles are congruent.

RHOMBUS has 2 pairs of parallel sides, opposite angles are congruent, and all four sides are congruent.

RECTANGLE has 2 pairs of parallel sides, opposite sides are congruent, and it has four right angles.

SQUARE has 2 pairs of parallel sides, four right angles, and four sides are congruent.

ISOCELES TRAPEZOID has one pair of parallel sides, the nonparallel sides are congruent, and two pairs of congruent angles.

Tuesday, January 20, 2009

6-6 Triangles

There are 180 degrees in a trianlge.

A triangle contains 3 sides, 3 angles, and 3 vertices.

Triangles may be classified by angle measure:

An ACUTE triangle contains 3 acute angles.

An OBTUSE triangle contains 1 obtuse angle.

A RIGHT triangle contains1 right angle.

Triangles may also be classified by side length:

A SCALENE triangle has no equal sides.

An ISOSCELES triangle has 2 equal sides (and 2 equal angles)

An EQUILATERAL triangle has 3 equal sides (and 3 equal angles which each = 60 degrees)

Please familiarize yourself with the different triangles based on ANGLES and SIDES!

Friday, January 16, 2009

Math is Difficult!

Hey Everyone,

In case some of you forgot, math can be difficult, hard, confusing, tedious, frustrating, and annoying! This is a good thing. It is your own personal journey working through such complex concepts and ideas that will ultimately develop your mind and allow you to analyze new ideas, deal with and work through challenges, and become a better thinker...

I know this work is difficult - DON'T GIVE UP! You are each smarter and have more potential than you could possibly imagine...

Have a great weekend!