The apothem is a line segment from center point of side of a regular polygon to the midpoint of the regular polygon.

s = Length of any side of a polygon

n = Number of sides of a polygon

tan = Tan function calculated in degrees

Alternatively, if we know the circumradius (radius) of the polygon we can use this below formula to find the apothem.

r = Radius of Polygon

n = Number of Sides of a Polygon

cos = Cos function calculated in degrees

Use our below online apothem calculator to find the apothem of the given polygon. Enter the given values and click calculate button to find the answer.

Use this apothem calculator when you know the length of any side of a polygon:

Use this apothem calculator when you know the radius of the polygon:

**Average Acceleration Calculator**

Average acceleration is the object's change in speed for a specific given time period. ...

When an object falls into the ground due to planet's own gravitational force is known a...

Torque is nothing but a rotational force. In other words, the amount of force applied t...

Average force can be explained as the amount of force exerted by the body moving at giv...

**Angular Displacement Calculator**

Angular displacement is the angle at which an object moves on a circular path. It is de...