All its angles add up to 360 degrees ... We compare and contrast the geometric properties of different triangles and quadrilaterals. A sketch explores naming shapes through their properties ...

Students may notice symmetry in the isosceles and equilateral triangles and non-symmetry in the scalene triangles Informal recognition of these properties may be helpful in recognizing formal ...

Two mathematicians now say they’ve made progress on a very old unsolved math problem. The problem involves a subfield called geometric measure theory, in which sets of objects a ...

Circle theorems are used in geometric proofs and to calculate angles. Transformations - Edexcel Transformations change the size or position of shapes. Congruent shapes are identical, but may be ...