Question

find the volume of a cone whose slant height is 17cm and radius of base is 8cm .​

Answer 1

Answer:

From the question we know,

l = 17

r = 8

Volume = 1 / 3 π r² h

Here we need to know the height, So we use

l² = h² + r²

h² = l² - r²

h² = (17)² - (8)²

= 289 - 64

h² = 225

h = √225 = 15

substituting the value of h we get

1 / 3 x 22 / 7 x 8 x 8 x 15

= 1005.71 cm³