How to Calculate Inradius of octagon given circumradius and central angle?
Inradius of octagon given circumradius and central angle calculator uses Inradius=Radius*cos(Angle A/2) to calculate the Inradius, The Inradius of octagon given circumradius and central angle formula is defined as
Ri=Rc*cos(θ/2) where Ri is inradius, Rc is circumradius and θ is central angle of octagon. Inradius and is denoted by r symbol.
How to calculate Inradius of octagon given circumradius and central angle using this online calculator? To use this online calculator for Inradius of octagon given circumradius and central angle, enter Radius (r) and Angle A (∠A) and hit the calculate button. Here is how the Inradius of octagon given circumradius and central angle calculation can be explained with given input values -> 0.173867 = 0.18*cos(0.5235987755982/2).