Search "triangles"

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
602
13:27

Finding congruent triangles

Using the SSS, ASA, SAS, and AAS postulates to find congruent triangles

Khan Academy
Congruence postulates
500
07:27

Congruent triangle example 2

Showing that segments have the same length

Khan Academy
Congruence postulates
544
12:13

Congruent legs and base angles of isosceles triangles

Showing that congruent legs imply equal base angles and vice versa

Khan Academy
Congruence and isosceles and equilateral triangles
543
09:02

Figuring out all the angles for congruent triangles example

Another example of using congruency to figure out a bunch of angles

Khan Academy
Congruence and isosceles and equilateral triangles
581
04:34

Area of diagonal generated triangles of rectangle are equal

Area of Diagonal Generated Triangles of Rectangle are Equal

Khan Academy
Perimeter and area of triangles
572
04:35

Area of an equilateral triangle

Finding the formula for the area of an equilateral triangle with side s

Khan Academy
Perimeter and area of triangles
696
03:42

Area of shaded region made from equilateral triangles

Khan Academy
Perimeter and area of triangles
647
05:36

Area of an equilateral triangle

Finding the formula for the area of an equilateral triangle with side s

Khan Academy
Koch snowflake fractal
621
03:42