Answers

✨ Jawaban Terbaik ✨

OA = √[1^2+(25/4)^2] = √29/2
OD = √2
OA:OD = √29:2√2

oops.

請問25/4是怎麼來的ㄚˇ?

Mer

看圖5/2平方才對

oops.

好,謝謝~

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