Match the following columns:

Answer

(a) - (q) , (b) - (s) , ( c) - (p) , (d) - ( r)

Explanation

(a) R=20cm, r=10cm and h=30cm
Capacity=`1/3pih(R^2+r^2+Rr)`
`{1/3xx(22)/7xx15xx(400+100+200)}cm^3=11000cm^3`
(b) R=20cm,r=12cm and h=15cm
` l=sqrt(h^2+(R-r)^2)=sqrt((15)^2+(20-12)^2)cm = sqrt((15)^2+8^2)cm`
`=sqrt(225+64)cm=sqrt((15)^28^2)cm`
`sqrt(225+64)cm=sqrt(289)cm=17cm`
(c) R=33cm, r=27cm and l=10cm
Area surface area `pi[R^2+r^2+l(R+r)]`
`=pi[(33)^2+(27)^2+10xx(33+27)]cm^3`
`=pixx(2418)cm^2=(2418pi)cm^2`
(d) `4/3piR^3=4/3pixx[(3)^3+(4)^2+(5)^3]rArrR^3=216=(6)^3rArrR=6`
`therefore` diameter =12cm
The correct answer is (a)-(q), (b)-(s), (c)-(p), (d)-(r)