An isosceles triangle will have two angles the same size. In an equilateral triangle, all angles will be 60°. A right-angled triangle will have one angle that is 90°, which means the other two ...

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

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

It categorizes triangles into equilateral, isosceles, scalene, obtuse, right, and acute based on their sides and angles. The video also covers the concept of congruency, demonstrating how two ...