## Right Triangle (Pathagorean Theorem) Calculator

 side a side b side c angle A angle B angle C

 Perimeter: Area: Inscribed Circle Radius: Circumscribed Circle Radius: Angle Bisector of a: Angle Bisector of b: Angle Bisector of c: Altitude of c: Median of a: Median of b: Median of c:

A right triangle is a triangle in which one angle is a right angle.

The side opposite the right angle is called the hypotenuse (side c in the figure). The sides adjacent to the right angle are called legs (side b in the figure). Side a may be identified as the side adjacent to angle B and opposed to (or opposite) angle A, while side b is the side adjacent to angle A and opposed to angle B. 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 (tc) tc2 = 2 × a2 × b2 / (a + b)2 Median of a ( ma ) ma2 = b2 + 0.25 × a2 Median of b ( mb ) mb2 = a2 + 0.25 × b2 Median of c ( mc ) mc = c / 2 Inscribed Circle Radius a × b / ( a + b + c ) Circumscribed Circle Radius c / 2
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