原來most平行四邊形嘅diagonals arent equal
cant 接受

通常會教學生畫extreme case去睇, 咁就可以控制自己嘅「直覺」

I drew a few parallelograms and all of then look diagonal-equal🥀

Just a random sketch
Key is to make one pair very steep

Oh woa
Thankss haha