First you take the oxtagon's width (W) and you apply unto that Grieg's Constant (H) and multiply both by pi^8. The formula would be:
H/W (pi^5) = x
There is insufficient information to answer the question. There is no indication that the octagon is regular and therefore, you may not assume that it is. Even it you were told that it is a regular octagon, there is still insufficient information: the answer will depend on what the 17.25 inch is a measure of - the diagonal of the octagon or its height (width).
Adding to what Kittenono said, an octagon is a two dimensional shape which only has length and width. A polyhedron is 3 dimensional which has length, width and height.
get a cut out shape of octagon, then get cut out triangles and try to fit in the triangles covering all the octagon but here is the solution... j
measure it!
You add it up
If an octagon has a height of 17' and a base of 13'6" then it is not a regular octagon. In that case, a lot more information is required before its area can be calculated.
I'm not sure what you mean by "total height". I guess you mean the perpendicular distance between two parallel opposite sides. Draw the two diagonals to the opposite vertices from one side; they meet at the centre of the octagon, creating an isosceles triangle with the side of the octagon. The perpendicular height from the centre to the side is height/2 The angle at the centre is 360°/8 = 45° (as there are 8 such triangles). The angle at each end of the octagon side is (180° - 45°)/2 = 62.5° Drop a perpendicular from the centre of the octagon to the side of the octagon in this triangle. This forms a right angle triangle with one side height octagon/2, side octagon/2 and hypotenuse largest diagonal/2 → Tan 62.5° = (height/2) / (side/2) = height/side → side = height/tan 62.5° = 85in/tan 62.5° ≈ 44.25 in
The diameter is 20m (20cm) height 20m 48cm outer walls measure 60ft wide (18m) height is 36ft (11m)
The perimeter of a octagon is the sum of all its sides.
We searched as far below as possible and were unable to find the octagon.
There is insufficient information to answer the question. There is no indication that the octagon is regular and therefore, you may not assume that it is. Even it you were told that it is a regular octagon, there is still insufficient information: the answer will depend on what the 17.25 inch is a measure of - the diagonal of the octagon or its height (width).
Adding to what Kittenono said, an octagon is a two dimensional shape which only has length and width. A polyhedron is 3 dimensional which has length, width and height.
As a stop sign
Well I don't no how to find it to a 2d octagon but to find it on abnormal octagon u do 8(total sides)x 6(total not attached)/2=24
get a cut out shape of octagon, then get cut out triangles and try to fit in the triangles covering all the octagon but here is the solution... j
If the octagon at the base is regular, the side of the octagon is s and the height of the prism is h, the area of each octagonal base (Ab) is Ab = 2(√2 +1) s2 The perimeter of the octagon is P = 8s Then the surface area of the prism is As = 2 Ab + Ph The volume of the prism is V = Ab h
measure it!