Question

find the total surface area of cone whose diameter is 8 cm and height is 3cm​

Answer 1

hey there is answer!!

I hope you help !!


Dear Student,

We have,Diameter of a cone =8 cm so, radius will be=3cmand,Height==7 cmNow, as we know;Volume of a cone = 13πr2h=13×227×6×6×7 =264 cm3

Regards.

Answer 2

Answer:

Step-by-step explanation:

Total surface area=πr(l+r)

D=8cm

R=4 cm

H=3cm

L=√h^2+r^2

L=√9+16

L=√25

L=5 cm

Put the values in the formula

22/7*4(5+4)

22/7*4*9

792/7

113.14 cm^2 is the answer

Hope you will get!!

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