Oblicz dla koła ,walca , stożka :
r=3
l=5
koło;
P=4** 3^2 = 36
v=4/3 3^3= 36
stożek
p: 3*5= 15
l^2=r^2+ h^2
5^2=3^2+ h^2
25=9+ h^2
h^2=16
h=4
V=1/3 3^2*4= 12
Walec
p=2(3+4)=14
V= 3^2*4= 36
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koło;
P=4** 3^2 = 36
v=4/3 3^3= 36
stożek
p: 3*5= 15
l^2=r^2+ h^2
5^2=3^2+ h^2
25=9+ h^2
h^2=16
h=4
V=1/3 3^2*4= 12
Walec
p=2(3+4)=14
V= 3^2*4= 36