Top surface of a raised platform is in the shape of a regular octagon as shown in the figure. Find the area of the octagonal surface.

Find the area of the shape shown in the figure 10.10.

Regular reflection is caused by the irregularities in the reflecting surface

Johan recieves an order for a carpet in the shape of a regular octagon with 8 inche sides. The octangonal carpet will be cut out from a square piece of carpet , as shown in the figure above. What is the area of the one of the 4 congruent triangles that will be cut out from the square?

Find the perimeter of the following: A regular octagon with each side 9 cm

Express in circular measure and also in degrees the angle of a regular octagon.

The measure of the sum of the interior angles of a regular n-sided polygon is (n-2) 180^@ . A regular octagon is shown below. What is the measure of the designated angle ?

Flux (in S.I. units) coming out and eantering a closed surface is shown in the figure. Find charge enclosed by the closed surface.

Find the area of the following regular hexagon Figure

The curved surface area of a cylinder is twice the sum of areas of its two end surfaces. Find the ratio of its heigth and radius.

Prove that the sum of all vectors drawn from the centre of a regular octagon to its vertices is the zero vector.