One quarter of the cross

主題：分數

Claim: The area of the overlapped regions between the square and the cross is always one quarter of the area of the cross. Can you prove this true or false?

Try dragging the point around to see what happens.

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חלוקת קטע לשלושה חלקים שווים
material-31212
volume
הגדרת המושג גבול 2
Why we need the HCF to find squares fitting a rectangle
Bài tập 15 trang 51

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等式
坐標
向量
黎曼和（Riemann Sum）
外接圓

One quarter of the cross

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