BBC2 年
Classifying quadrilaterals
As you can see, some quadrilaterals share more properties than four sides and four angles. Look at this rhombus and square. These two quadrilaterals also share 2 pairs of parallel lines and 4 ...
BBC4 个月
Classifying quadrilaterals
As you can see, some quadrilaterals share more properties than four sides and four angles. Look at this rhombus and square. These two quadrilaterals also share 2 pairs of parallel lines and 4 ...