• Pythagorean Theorem
c² = a² + b²

• Area
a × b / 2

• Altitude of c (h)
a × b / c

• Angle Bisector of a
2 × b × c × Cos(A/2) / (b + c)

• Angle Bisector of b
2 × a × c × Cos(B/2) / (a + c)

• Angle Bisector of c (t_c)
t_c² = 2 × a² × b² / (a + b)²

• Median of a ( m_a )
m_a² = b² + 0.25 × a²

• Median of b ( m_b )
m_b² = a² + 0.25 × b²

• Median of c ( m_c )
m_c = c / 2

• Inscribed Circle Radius
a × b / ( a + b + c )

• Circumscribed Circle Radius
c / 2