Resulting 4446

A square with a side length of 3 cm rotates around its diagonal. Calculate the volume and surface area of ​​the resulting body.

Correct answer:

V =  19.993 cm3
S =  39.9859 cm2

Step-by-step explanation:

a=3 cm  u=2 a=2 3=3 2 cm4.2426 cm r=u/2=4.2426/22.1213 cm  S1=π r2=3.1416 2.1213214.1372 cm2 V1=S1 r/3=14.1372 2.1213/39.9965 cm3  V=2 V1=2 9.9965=19.993 cm3
s=a=3 cm S2=π r s=3.1416 2.1213 319.993 cm2 S=2 S2=2 19.993=39.9859 cm2



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