Plz answer 25 and 24 question
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hello , here in 24 q.
you have to find hollosphere
formula is 4/3pi (R^3-r^3)
put here values of radius
your equation be
4/3 pi ×(5^3-3^3)= pi ×49×h
4/3(125-27)=49
4/3(98)=49h
h=8/3 cm
in question 25
use the formula = pi/3 ×h (R^2+r^2+Rr)
put the values
pi/3×14 (64+36+48)
=pi/3×14×(148)
22/21 ×14×148
22/3×2×148
(44×148)/3
=2170.66 cm^3
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