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Maths Book 27-30
maths book p.1-26
Teacher Chong
mathematics p.31-32
Parallels' meaning and applying.
alternate-interior angle、Parity angle
Properties of Parallelograms – IDENTITY
Diamonds and Squares
Four Properties of Parallelograms
Parity angle、Ipsilateral inner angle、Internal staggered angle
2 questions: put checks and input number
Parity angle、alternate-interior angle
Click to listen, fill in the blank
Rectangles and Diamonds
Properties of Parallelograms
Trapezoid and judgement of Quadrilaterals