Calculate 38701

Calculate the surface and volume of the cut rotating cone with base radii of 14cm and 8cm height of 11cm.

Correct answer:

V =  4285.1324 cm3
S =  1682.823 cm2

Step-by-step explanation:

r1=14 cm r2=8 cm h=11 cm  V=3π h (r12+r1 r2+r22)=33.1416 11 (142+14 8+82)=4285.1324 cm3
S1=π r12=3.1416 142615.7522 cm2 S2=π r22=3.1416 82201.0619 cm2 S3=π (r1+r2) h2+(r1r2)2=3.1416 (14+8) 112+(148)2866.0089 cm2  S=S1+S2+S3=615.7522+201.0619+866.0089=1682.823 cm2



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