How to Calculate side b of a triangle?
side b of a triangle calculator uses side_b = sqrt(Side A^2+Side C^2-2*Side A*Side C*cos(Angle B)) to calculate the Side B, Side b of a triangle is one of the three sides of the triangle. Side B and is denoted by b symbol.
How to calculate side b of a triangle using this online calculator? To use this online calculator for side b of a triangle, enter Side A (a), Side C (c) and Angle B (∠B) and hit the calculate button. Here is how the side b of a triangle calculation can be explained with given input values -> 5.894503 = sqrt(8^2+4^2-2*8*4*cos(0.785398163397301)).