4.14 feet, approx.
The diameter of an octagon with sides of 11 feet can take any value between 0 feet and 44 feet.
For a regular octagon, the angle for each side of an octagon is 180 x (8 - 2) / 8= 1080 / 8 = 135 degrees. Observe that 135 = 90 + 45. So, if we split up the octagon's angles on one side into 90 and 45 degree angles, we will get two 45-45 triangles, and a square. The length of the sides for a 45-45 triangle is 1/1/√2, or, more generally, x/x/x√2. The diameter of an octagon in relation to the sides is 2√2x+x = (1 + 2√2) * x. Solve for x: (1 + 2√2) * x = 13 Divide by (1 + 2√2), isolating x: x = 13 / (1 + 2√2) = 3.39565... The length of each side of an octagon with a diameter of 13 feet is approximately 3.39 feet, or 13 / (1 + 2√2) feet.
The area of an octagon which is nine feet on each side equates to 391.1 feet2
The area of an octagon with each side being 8 feet is 309 square feet.
A regular octagon has eight equal sides and angles. For a 6-foot octagon, each side would measure approximately 21.2 inches (or 1.77 feet) when calculated from the circumference. The overall diameter of the octagon, which is the distance across the shape from one vertex to the opposite vertex, would be about 6.9 feet. Additionally, the height from one flat side to the opposite flat side would be approximately 5.2 feet.
Approx 3.83 feet.
The diameter of an octagon with sides of 11 feet can take any value between 0 feet and 44 feet.
24 feet?
For a regular octagon, the angle for each side of an octagon is 180 x (8 - 2) / 8= 1080 / 8 = 135 degrees. Observe that 135 = 90 + 45. So, if we split up the octagon's angles on one side into 90 and 45 degree angles, we will get two 45-45 triangles, and a square. The length of the sides for a 45-45 triangle is 1/1/√2, or, more generally, x/x/x√2. The diameter of an octagon in relation to the sides is 2√2x+x = (1 + 2√2) * x. Solve for x: (1 + 2√2) * x = 13 Divide by (1 + 2√2), isolating x: x = 13 / (1 + 2√2) = 3.39565... The length of each side of an octagon with a diameter of 13 feet is approximately 3.39 feet, or 13 / (1 + 2√2) feet.
The area of an octagon which is nine feet on each side equates to 391.1 feet2
The area of an octagon with each side being 8 feet is 309 square feet.
7 feet
An octagon has 8 sides, each of which is four feet long. 8 x 4 = 32 feet, or 10 yards, 2 feet.
The side length of a regular octagon whose principal diagonal is 25 feet is 9.57 feet, approx.
Area = 695.294 ft2
Area = 271.6 ft2
Area = 173.8 ft2