The formula for calculating the side length of a regular octagon is: the side length of a regular octagon =2X (the radius of a regular octagon) * sin22.5. A figure surrounded by eight line segments with the same length, each with an internal angle of 135, is called a regular octagon.
Perimeter and side length:
1. If its area s is known, then its side length A = √( s \u( 2+2√2)) and perimeter A = 8×(√( s \u( 2+2√2+2 √ 2)).
2. If the longest diagonal is known, the side length can be converted by the area formula.
3. If the side length A is known, the perimeter a = 8× a ..
4. If the radius of the circumscribed circle is known, it should be converted according to the area formula.
Expand:
How to calculate the side length of an octagon?
2X (radius of regular pagoda tree octagon) * sin22.5 = side length of regular octagon;
The diameter of a convex polygon is the distance between the farthest two points of the polygon, and so is a regular octagon. Diameter is the distance between two vertices that are symmetrical about the center point. Draw a picture and make eight isosceles triangles passing through the center. The vertex angle of each pair of triangles is 45, the waist (that is, the radius of the regular octagon) is x, and the side length is 2 * x * sin22.5 = 2x * sin22.5.
300*(sin22.5 degrees) =114.805mm.
A figure surrounded by eight equal-length line segments, each with an internal angle of 135, is called a regular octagon.
Every corner of a regular octagon is equal in size and every side is equal in length.
The sum of the internal angles of a regular octagon is 1080 degrees, each internal angle is 135 degrees and each external angle is 45 degrees.