The distance of each vertex from the centre is equal. Area of a regular octagon, A = 2a2 (1+√ 2 ) Square units. A regular octagon has all its sides equal in length. So all you have to do to get the area of the octagon is to calculate the area of the square and then subtract the four corner triangles. Hence, here we are providing some important steps to find the area of an irregular octagon. A regular octagon has: Interior Angles of 135° Exterior Angles of 45° Area = 2(1+√2)s 2, or approximately 4.828427 × s 2 (where s=side length) Width w = (1+√2)s; Any octagon has: Sum of Interior Angles of 1080° 20 diagonals B = 7m The area of an octagon = 2 x (1 + √2) x B2 Area = 2 x (1 + 1.414213562) x 72 Each side could be a different length, and each interior angle could be different. length of base =30, If so then the octagon can be partitioned into there pieces, a rectangle, which is 42 units by 21 units and hence has an area of $42 \times 21$ square units, and two congruent trapezoids. It could also be either convex or concave. Thus in my diagram each of the pink trapezoids has area $\large \frac{42 + 30}{2} \normalsize \times d$ square units. An octagon is a polygon with eight sides; a polygon being a two-dimensional closed figure made of straight line segments with three or more sides.The word octagon comes from the greek oktágōnon, “eight angles”. Visit BYJU’S – The Learning App to learn more Maths-related concepts and download the app to watch interesting videos. Note that the base of the triangle is the length of a side of the octagon. It measures 1 1/2" = from flat to flat. The area of an irregular octagon How do you figure the area of an irregular octagon? Finding the area of a regular octagon is an easy task because you have been provided by a symmetric figure. In a regular polygon, there are 8 sides of equal length and equal internal angles – 1350. Measurements are 4 equal sides of =BD", and 4 equal sides of =BE". Therefore, the area of a regular octagon is 120.7 cm2. The area of a trapezoid is the average of the lengths of the parallel sides times the distance between the parallel sides. The length of one of the 8 sides “ B ” is 7m, calculate the area of the octagon. \(A =\sqrt{8.5(8.5-3)(8.5-6)(8.5-8)}=7.64\). How do you figure the area of an irregular octagon? The length of rectangle is 42 and the width is 21 and and the base length is 42-12 =30 i mean the You will obtain the total area of the octagon: area of octagon = 8 * base * height / 2 = perimeter * apothem / 2. The area of a trapezoid is the average of the lengths of the parallel sides times the distance between the parallel sides. The area of an octagon formula is given as.

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