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0:05:12

Mr Fountain Geometry -- Intro Trig Functions

0:03:04

Practice 30-60-90 Special Triangles

0:05:13

Ch 8-3 30-60-90 Special Triangles

0:04:34

Practice 45-45-90 Special Triangles

0:04:57

Ch8-3 page 18 45-45-90 Special Triangles

0:00:30

Mil Sci Exercises

0:03:39

Geometric Mean in Right Triangles

0:03:40

Ch 8-1 Geometric Mean of Right Triangles page 6

0:02:45

8-1 Geometric Mean page 5

0:01:02

New novel, Bach's Air

0:11:51

Trig Review ch 8-4

0:08:23

Review chapter 8-1 thru 8-3

0:08:55

Review ch 6

0:03:02

If apposite angles congruent then quad is parallelogram.

0:13:42

Practice mid term problems 2nd part

0:10:32

Practice mid term problems

0:04:01

Proof -- Parallelogram with congruent diagonals is a rectangle

0:01:55

Example Proof using triangle inequality

0:03:10

Proof on triangle inequalities

0:02:30

Proof - Diagonals of a rhombus bisect opposite angles

0:06:47

Indirect Proof example

0:03:22

Proof: opposite angles congruent then it is a parallelogram

0:05:39

Proof - if diagonals bisect then it is a parallelogram.

0:08:05

Finding the centroid and lenghts of medians