Newest
Congruent triangle example 2
Showing that segments have the same length
Khan Academy
Congruence postulates
565
12:13
Congruent triangle proof example
Proving that a point is the midpoint via triangle congruency
Khan Academy
Congruence postulates
477
05:45
Perpendicular radius bisects chord
Simple proof using RSH postulate to show that a radius perpendicular to a chord bisects it
Khan Academy
Congruence postulates
537
06:56
More on why SSA is not a postulate
SSA special cases including RSH
Khan Academy
Congruence postulates
531
07:23
Finding congruent triangles
Using the SSS, ASA, SAS, and AAS postulates to find congruent triangles
Khan Academy
Congruence postulates
509
07:27
Two column proof showing segments are perpendicular
Using triangle congruency postulates to show that two intersecting segments are perpendicular
Khan Academy
Congruence postulates
559
11:05
Other triangle congruence postulates
SSS, SAS, ASA and AAS postulates for congruent triangles. Showing AAA is only good for similarity and SSA is good for neither
Khan Academy
Congruence postulates
624
13:27
SSS to show a radius is perpendicular to a chord that it bisects
More on the difference between a theorem and axiom. Proving a cool result using SSS
Khan Academy
Congruence postulates
674
08:18
Congruent triangles and SSS
What it means for triangles to be congruent
Khan Academy
Congruence postulates
541
11:28
