What is the area of a octagon with a radius of 8?
181.02 sq cm
The area of each of the 8 congruent triangles described above is computed as about 22.6273 sq cm. This leads to octagonal area is 181.02 sq cm.
How do you find the side of an octagon with the radius?
Radius or Circumradius Multiply the diameter’s length, the distance from vertex to opposite vertex, by 0.383 to calculate a side’s length. For example, the diameter is 10 inches — 10 inches multiplied by 0.383 results in 3.83 inches.
What are the measurements of a octagon?
Each of the interior angle and the exterior angle measure 135° and 45° respectively, in a regular octagon….Octagon Formulas.
| Formulas for Octagon | |
|---|---|
| Area of an Octagon | 2a2(1+√2) |
| Perimeter of an Octagon | 8a |
How do you measure an octagon table?
How to Measure Tablecloth Size for Octagon Tables
- Measure your table from the farthest point between two flat edges to the point directly opposite it. This is the diameter of your table.
- Measure the drop – how far down you want the tablecloth to hang.
- Add the diameter of the table to the final number of the drop.
What is the formula for the area of an octagon?
To find the area of an octagon we use the following formula. Area of octagon formula = 2 × s 2 × (1+√2). Where “s” denotes the length of the side of an octagon.
How do you calculate the area of a regular octagon?
– It has 8 sides and 8 interior angles. – All the sides are equal in length and all the angles are equal in measurement. – There are a total of 20 diagonals in a regular octagon. – Each interior angle measures 135 degrees. Hence, the sum of all interior angles is (135 x 8) = 1080 degrees. – Each exterior angle measures 45 degrees.
How do you measure an octagon?
How do you measure an octagon? To find the measure of the central angle of a regular octagon, make a circle in the middle… A circle is 360 degrees around… Divide that by eight angles… So, the measure of the central angle of a regular octagon is 45 degrees.. What is 8 sided shape called? …
What is the square footage of an octagon?
The only measurement needed to find the area of a regular octagon is its side. Since all sides are equal it does not matter which side is measured. For example, if the side of a pool with the shape of an octagon is 10 yards, its area is then 2 · (1 + √2) · side 2 = 4.828427 · 10 2 = 4.828427 · 100 = 482.8427 square yards.