The rectangle has four of them, and any parallelogram
that has one of them is a rectangle.
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After hexagon comes a heptagon, which is a seven-sided polygon. The prefix "hepta-" denotes seven in Greek, just as "hexa-" denotes six. Each additional side added to a polygon increases the number of sides by one, following the pattern of polygon naming based on Greek numerical prefixes.
A rectangle comes to mind. A rectangle is equiangular (all angles the same) and is also a quadrilateral (four-sided), but is not equilateral (all sides of the same length).
A polygon is a 2 dimensional (flat) geometric figure with 3 or more sides. The computer screen you are looking at right now is probably a polygon. So is the door to your room, a window, the mattress on your bed, etcPolygons are closed plane figures with straight line edges and several sides. For example triangles, rectangles, squares, pentagons, and hexagons.Remember!Circles are not polygonal shapes!Polygon comes from two Greek words:πολύς (polús) meaning much or many; andγωνία (gōnía) meaning corner.A "Polygon" is a shape with many corners (angles).
A pentagon has 5 sides. A hexagon has 6 sides. The penta- prefix comes from the Greek for 5; The hexa- prefix comes from the Greek for 6. The -gon suffix comes from the Greek for "corner" or "angle". Thus a pentagon is a five cornered (or five angled) shape; and a hexagon is a six cornered (or six angled) shape.
Reading these answers makes me really concerned for the education in our country. Especially considering the “best answer” is absolutely wrong. A 4x8 sheet from corner to corner is a right triangle. If you are trying to find the hypotenuse aka corner to corner you use the Pythagorean theorem. A2 x B2 = C2 the “2” is squared not sure how to get the little 2 on my phone. So (48”x48”) + (96”x96”) = C2 2304 + 9216 = C2 11520 = C2 Just have to now find the sq root of 11520. Not going to go into the manual instructions for that but it comes out to 107.33….. or 107 11/32“ roughly. How anyone can comprehend that you can go corner to corner on a 4x8 (48x96) sheet of plywood and get a lesser number even without understanding the above calculations is beyond me.