W hen most people think of shapes, they imagine a triangle, a rectangle, or maybe even a fancier- sounding rhombus or ...

An angle is the amount of turn between two lines ... Make a mark where the 50° is on the outside scale. Image caption, Step 4: Remove the protractor. Using a ruler, join the mark you made ...

Let's recap what a polygon is with this quick video. How would you work out the sum of internal angles in a polygon that has more than 4 sides? There is a formula that you can use to work out the ...