the curved surface area of a cone is 1159 5/7 cm2. area of its base is 254 4/7 cm2. find its volume.
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area of the base is 1782/7
radius is root of area by pi..tht is 9cm
csa pi(r)l is 8118/7
by substitution of r value we get l as 41
h^2 is l^2-r^2
by solving we get h as 40cm
volume is 1/3 (pi) r^2 (h)
that is 1/3 (pi)(81)(40)
1080 pi cubic cm
radius is root of area by pi..tht is 9cm
csa pi(r)l is 8118/7
by substitution of r value we get l as 41
h^2 is l^2-r^2
by solving we get h as 40cm
volume is 1/3 (pi) r^2 (h)
that is 1/3 (pi)(81)(40)
1080 pi cubic cm
Answered by
0
Answer:
1080cm^3
Step-by-step explanation:
area of the base is 1782/7
radius is root of area by pi..tht is 9cm
csa pi(r)l is 8118/7
by substitution of r value we get l as 41
h^2 is l^2-r^2
by solving we get h as 40cm
volume is 1/3 (pi) r^2 (h)
that is 1/3 (pi)(81)(40)
1080 pi cubic cm
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