Question

A tap is over a cone.the common radius is 7cm.height of conical part is 24cm.find tsa and volume of top

Answer 1

Answer:

Step-by-step explanation:

Radius is 7cm

Now CSA of hemisphere is 2πr^2= 2×22/7×7×7=308cmsquare

CSA of cone is πrl ,where l=25 now πrl=22/7×7×25=550cmsqaure

TSA of tap =CSA of Cone + CSA of hemisphere

=550+308=853cmsquare

Volume of hemisphere is 2/3πr^3 =718.66cm^3

Volume of cone is 1/3πr^2h=1232cm^3

Volume of tap =volume of hemisphere+volume of cone

718.66+1232=1950.66cm^3