Calculate 38701

Calculate the surface and volume of the cut rotating cone with base radii of 14cm and 8cm, height 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
S=π r12+π r22+π (r1+r2) h2+(r1r2)2=3.1416 142+3.1416 82+3.1416 (14+8) 112+(148)2=1682.823 cm2

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