帮我代入数字解答,S侧=chS侧=πdhS侧=2πrhS表=2πrh+πr²×2S表=πdh+π(d÷2)²×2S表=ch+π(c÷π÷2)²×2S表=S侧+S底×2h=S侧÷Ch=S侧÷(πd)h=S侧÷(2πr)V柱=shV柱=πr²hV锥=1/3shh=V锥÷s÷1/3h=V柱÷sh=V

Question

帮我代入数字解答,S侧=ch S侧=π dh S侧=2π rh S表=2π rh+π r ²×2 S表=π dh+π(d÷2)²×2 S表=ch+π(c÷π÷2)²×2 S表=S侧+S底×2 h=S侧÷C h=S侧÷(π d) h=S侧÷(2π r) V柱=sh V柱=π r ²h V锥=1/3sh h=V锥÷s÷1/3 h=V柱÷s h=V柱÷[π (d÷2)²] V正=a² V长=abh S长=(ab+ah+bh)×2 S正=6a²

Answer 1

(代数字。） 1.=8X5 =40 2.=3.14X1X2 =3.14X2 =6.28 3.=3.14X2X3X1 =6.28X3X1=18.84 4.=3.14X2X2X2+3.14X1X1X2=25.12+6.28=31.4 5.=3.14X2X3+3.14X(2÷2）X（2÷2）X2=18.84+6.28=25.12 6.=8X2+3.14(31.4÷3.14÷2）X(31.4÷3.14÷2）X2=16+157=173 7.9X6.28X2=113.04 8.31.4÷3.14=10 9.31.4÷（3.14X1)=10 10.31.4÷（2X0.5X3.14)=10 11.8X8=64 12.3.14X2X2X1=12.56 13.3X3X1/3=3 14.9÷1÷1/3=27 15.9÷3=3 16.6.28÷【3.14X（2÷2）X（2÷2）】=2 17.4X4=16 18.1X2X3=6 19.(1X2+1X3+2X3)X2=22 20.6X2X2=24.