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            ݌(do) пָ 2024TпYӍ пɿԃ vп?jn)?sh) п־Ը пӛ п}𰸴ȫ vпĴȫ
            F(xin)ڵλãп > п俼 > п(f)(x) > п(sh)W(xu) >

            2025п(sh)W(xu)}ͽ}׺Ӌ

            ԴW(wng)j(lu)YԴ ߣпW(wng)݋ 2025-06-14 22:38:23

            п}

            MI(lng)Y


            ׺Ӌ

            һǶcȵӋ

            1κ߅εĽǵӋҪ(j)

            šεă(ni)ǺͶՓ

            ߅εă(ni)ǺͶՓ

            A(ni)߅|(zh)

            2P(gun)ĽǵӋҪ(j)

            šAĽǵĶȔ(sh)ĻĶȔ(sh)

            ơAܽǵĶȔ(sh)ĻĶȔ(sh)һ

            нǵĶȔ(sh)AȔ(sh)һ

            3߅εĽǵӋҪ(j)

            šn߅εă(ni)Ǻ=(n-2)*180°

            n߅εÿһ(ni)=(n-2)*180°÷n

            ǡn߅εһǵڸ߅ĽҶ

            LȵӋ

            1ƽ߅κεӋ

            õĶҪȫȶλΡֱμNƽ߅ε|(zh)ȶP(gun)оӋҪ(j)λֱε|(zh)

            2P(gun)AľӋҪ(j)

            оL

            Aо|(zh)

            

            A߅΃ɽM߅ĺ

            ɈAЕrAľڃɈA돽֮ͣɈA(ni)ЕrAľڃɰ돽֮

            3ֱ߅Ӌ

            ֱ߅LӋ㑪(yng)VՓ(j)Ҫǹɶε|(zh)JǺ(sh)

            4ɱLȵ

            ƽо־γɱ

            Ό(yng)εıȵƱȣ

            Ӱ

            ȡཻҶՓиՓ

            ɡ߅ε߅ӋD(zhun)

            DeӋ

            1߅εeʽ

            SABCD=a·h

            S=1/2a·bab錦Ǿ

            S=1/2a+b·h=m·hmλ

            2εeʽ

            S=1/2·a·h

            S=1/2·P·rPLr΃(ni)ЈAİ돽

            3S߅=1/2·Pn·rn=1/2·nan·rn

            4SA=πR2

            5S=nπ=1/2LR

            6S=S-S

            ݋]

                   2025пĿc֪RR

             

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