Průměr kužele

Vypočtěte povrch a objem rotačního kužele jehož průměr je 60mm a délka strany 3.4 cm.

Correct result:

S =  60.3186 cm2
V =  15.0796 cm3

Solution:

D=60 mm cm=60/10  cm=6 cm s=3.4 cm  r=D/2=6/2=3 cm h=s2r2=3.4232=85=1.6 cm  S1=π r2=3.1416 3228.2743 cm2 S2=π r s=3.1416 3 3.432.0442  S=S1+S2=28.2743+32.0442=60.3186 cm2
V=13 S1 h=13 28.2743 1.6=15.0796 cm3



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