BBC11 个月
KS2 Maths teaching resources: Regular and irregular polygons
ZACH: Nice! ADA: Can you tell which are regular polygons and which are irregular polygons?We already know that this one is regular, and this one is irregular.Drop the others into the right boxes ...
BBC6 年
Polygons - sum of interior angles
Polygons can be regular or irregular in shape. A polygon is a closed 2D shape with at least three sides. A regular polygon is a polygon with all equal sides and angles. An irregular polygon is a ...