Maths problem: how to do, thanks?
回答 (1)
2020-05-06 10:19 pm
✔ 最佳答案
AB和CD的圓心距=√(13²-(24/2)²)=5 cm故BC=√(CP²+BP²)
=√((12+5)²+(12+5)²)=17√2 cm
收錄日期: 2021-04-11 23:06:56
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