Recent content by Daugava

So the side length is 12 cm a = 12 cm Area is 2*(1+sqrt2)a^2 = 695,3 cm^2 Circumference is 8*a = 96 cm Is this right? But how do I find out how long the triangle cathetus/sides are that were cut off from the vertices of the square? Is the cut off 8,5 cm?

Square-shaped piece of paper is intended to make a regular octagon through the cutting of the vertices of a square. The length of the piece of paper is 29 cm. How long triangle cathetus have to be cut off from the vertices of the square? Calculate the octagonal side length, circumference, and...