Questions about the Angles in Polygons poster

What’s on the Angles in Polygons poster?

The rule, 4 worked examples. The interior angles of an n-sided polygon sum to (n − 2) × 180°. The exterior angles…; interior sum = (n − 2)180°; Triangle (n=3) = 180°; Quadrilateral (n=4) = 360°; Regular hexagon, each angle = 120°; Exterior angles, any polygon = 360°. Regular means all sides AND all angles equal. Only then can you divide the sum evenly.

Who is the Angles in Polygons poster for?

Angles in Polygons is filed under 10th Grade (ages 15–16), so it matches what that year asks a child to remember. It is equally useful to an older student revisiting math, and to the parent or teacher answering the question at the kitchen table.

When should you use the Angles in Polygons poster?

Interior and exterior at each vertex always add to 180°. That links the two formulas. A wall chart earns its place by being glanceable from where the work is happening, so Angles in Polygons belongs on the wall where that math work actually happens, within glancing distance, rather than filed away.

What other posters go with Angles in Polygons?

Circle Theorems, Coordinate Proofs and Sequences and Series sit alongside Angles in Polygons in the 10th Grade set. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Circle TheoremsCoordinate ProofsSequences and Series

Is the Angles in Polygons poster free to download and print?

Yes. Angles in Polygons downloads as a free PDF with no account, no email and no watermark, like everything else in the 10th Grade set. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence

What size does the Angles in Polygons poster print at?

Angles in Polygons is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Angles in Polygons loses nothing.Printing guide