How To Find The Radius Of A Hexagon

The radius of a regular hexagon, also called its circumradius, is the distance from its center to its vertexes, or points. Regular hexagons are polygons with six equal sides. The radius length allows the hexagon to be divided into six equal triangles that help in calculating the area of the hexagon. By using the area of the hexagon and the trigonometric properties of the inner triangles, you can find the radius of the hexagon.

Advertisement

Step 1

Calculate the sine and cosine of 30 degrees and then multiply the two amounts together. The amount of 30 degrees is the measure of the angle between the radius and the apothem, which is the length between the center of the hexagon and the midpoint of a side. The sine of 30 degrees is 0.5 and the cosine of 30 degrees is 0.866. Multiplying the two amounts together results in 0.433.

Advertisement

Step 2

Multiply the amount calculated in Step 1 by 6. 6 multiplied with 0.433 equals 2.598.

Step 3

Divide the area of the hexagon by the amount calculated in Step 2. For example, the area of the hexagon is 600. 600 divided by 2.598 equals 230.94.

Step 4

Calculate the square root of the amount calculated in Step 3 to find the radius of the hexagon. For this example, the square root of 230.94 is 15.197. The radius is 15.197.

Cite This Article

MLA

Gartneer, Chance E.. "How To Find The Radius Of A Hexagon" sciencing.com, https://www.sciencing.com/radius-hexagon-7868337/. 24 April 2017.

APA

Gartneer, Chance E.. (2017, April 24). How To Find The Radius Of A Hexagon. sciencing.com. Retrieved from https://www.sciencing.com/radius-hexagon-7868337/

Chicago

Gartneer, Chance E.. How To Find The Radius Of A Hexagon last modified March 24, 2022. https://www.sciencing.com/radius-hexagon-7868337/

Recommended

Advertisement