Angles in equilateral triangles The three angles in an equilateral triangle are equal and they add up to \ (180^\circ\). To find the size of each of these angles divide 180 by 3. \ (180 ÷ 3 = 60 ...

Learn about angles in triangles and quadrilaterals with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Students are often unsure why angles in the same segment of a circle have to be equal. Colin Foster explains how to make it ...