[latex]V = frac{4}{3}pi r^3\ P_p=4pi r^2[/latex] a) [latex]V = frac{4}{3}pi r^3=frac{4}{3}*3^3pi=36pi\ P_p=4pi r^2=4*3^2pi=36pi[/latex] b) [latex]V = frac{4}{3}pi r^3=frac{4}{3}*17^3pi=6550frac{2}{3}pi\ P_p=4pi r^2=4*17^2pi=1156pi[/latex] c) [latex]V = frac{4}{3}pi r^3=frac{4}{3}*14^3pi=3658frac{2}{3}pi\ P_p=4pi r^2=4*14^2pi=784pi[/latex]
1) a) r=3cm V=⁴/₃πr³ V=⁴/₃π*3³ 3³ dzielone przez 3 da nam 3² V=4π*3² V=36π cm³ Pc=4πr² Pc=4π*3² Pc=36π cm² b)r=17cm Pc=4πr² Pc=4π*17² Pc=4π*289 Pc=1156π cm² V=⁴/₃πr³ V=⁴/₃π*17³ V=⁴/₃π*4913 V=¹⁹⁶⁵²/₃π cm³ c)r=1,4dm Pc=4πr² Pc=4π*1,4² Pc=4π*1,96 Pc=7,84π cm² V=4/3πr³ V=4/3π*2,744 V=10,976/3π cm³
