area of triangles

The Rectangle Revelation (00:00 - 00:45)

  • Discussion on the relationship between rectangles and triangles, explaining that a triangle is essentially half of a rectangle with the same dimensions.

The Secret Formula (00:45 - 01:30)

  • An explanation of the mathematical formula for the area of a triangle, which is Area=12×base×height\text{Area} = \frac{1}{2} \times \text{base} \times \text{height}.

Avoiding the Slant Trap (01:30 - 02:00)

  • Clarification on using the vertical height (altitude) rather than the slanted side lengths when calculating area for non-right triangles.