If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two

Question

If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two sides are divided in the same ratio. This theorem is known as:

Accepted Answer

This fundamental theorem is known as Thales's Theorem or the Basic Proportionality Theorem (BPT). It states that if a line is parallel to a side of a triangle intersecting the other two sides, then it divides the two sides in the same ratio.

Triangles

❓ Sibling Questions in this Chapter