A

B

C

D

x

y

h

a

b

c

Drag vertices or edit values

⚠️ Not a Right Triangle at B

Proportions in Right Triangles

Geometric Mean Theorems (Altitudes)

Side Lengths

Side x (AB)

Side y (BC)

Alt h (BD)

Seg a (AD)

Seg b (DC)

Base c (AC)

Angles (Degrees)

Angle A

Angle B (90°)

Angle C

Geometric Mean Theorems

Leg Rule (Left) x² = a · c

0 = 0

Leg Rule (Right) y² = b · c

0 = 0

Altitude Rule h² = a · b

0 = 0

Area Product x · y = h · c

0 = 0