Calculate 73434

Calculate the volume and surface area of ​​the cone with a diameter of 20 cm and a height of 15 cm.

Correct answer:

V =  1570.7963 cm3
S =  880.5179 cm2

Step-by-step explanation:

d=20 cm  r=d/2=20/2=10 cm h=15 cm  V=31 π r2 h=31 3.1416 102 15=1570.7963 cm3
s=r2+h2=102+152=5 13 cm18.0278 cm  S=π r2+π r s=3.1416 102+3.1416 10 18.0278=880.5179 cm2

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