“The square is the finest expression of a spatial idea complete in itself,” Munari writes. “It’s structural possibilities have helped artists and architects of all generations and styles by giving ...

Evan O’Dorney leaps from his seat and snatches the chalk from his teacher’s hand. “I think it goes like this,” the eighth-grader exclaims. He has come up with a formula for the number of ways to ...

Everyone learns the number one rule about triangles in high school: the angles of a triangle add up to 180 degrees. But did you know that sometimes they don't? Triangles are much more interesting than ...

Arc length is a fraction of circumference. Area of a sector is a fractions of the area of a circle. Both can be calculated using the angle at the centre and the diameter or radius. Practice circle ...

Oh, sorry! Did we greet you the wrong way? Well if so, then you are going to enjoy these math riddles even more today. When it comes to math, not everyone smiles. Not everyone raised their hands in ...

Click to see a step-by-step guide. STEP 1: Use the ruler to draw a diagonal line from the bottom right corner of the paper to the top left corner. Mark the 90° right angles in the bottom left and top ...