Search "Formula"

Distance formula

How to find the distance between lines using the Pythagorean Formula

Khan Academy
The Pythagorean theorem
504
09:38

Heron's formula

Using Heron's Formula to determine the area of a triangle while only knowing the lengths of the sides

Khan Academy
Heron's formula
598
04:42

Part 2 of proof of Heron's formula

Showing that the expression in part 1 is identical to Heron's Formula

Khan Academy
Heron's formula
601
12:07