Calculate 8326

Calculate the cone shell with a base diameter of 40 cm and a cone height of 50 cm.

Correct answer:

S =  3383.5988 cm2

Step-by-step explanation:

D=40 cm h=50 cm  r=D/2=40/2=20 cm s=r2+h2=202+502=10 29 cm53.8516 cm  S=π r s=3.1416 20 53.8516=3383.5988 cm2

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