the curved surface area of a cone is 8118/7 cm^2 and area of its base is 1782/7 cm^2 find its volume
Answers
Answered by
0
i hope this will usful to u
Attachments:
Answered by
0
Answer:23760/7
Step-by-step explanation:
area of base=1782/7
pi*r^2=1782/7
22/7*r^2=1782/7
r=9
c.s.a of cone =8118/7
pi*r*l=8118/7
22/7*9*l=8118/7
l=41
volume of cone=(1/3)*pi*r^2*h.........(1) l^2=r^2+h^2
(41)^2-(9)^2=h^2
h=40
from eq.1
=(1/3)*(22/7)*(9*9)*(40)
23760/7
Similar questions