Projective theorem formula

Formula: For right angle △ABC, ∠BAC=90 degrees, and AD is the height on the hypotenuse BC.

Projective theorem;

(ad) 2 = BD Special Zone

(AB BC) 2 = BD

(AC) 2 = CD BC?

So ad/BD = CD/ad

So (ad) 2 = BD DC。

Projection Theorem, also known as Euclid Theorem: In a right triangle, the height on the hypotenuse is the median term of the ratio of the projection of two right-angled sides on the hypotenuse, and each right-angled side is the median term of the ratio of the projection of this right-angled side on the hypotenuse to the hypotenuse. Projective theorem is an important theorem in mathematical graphic calculation.