Question

From a solid cylinder height 20 centimetre and diameter 12 centimetre conical cavity height 8 cm and radius 6 cm is hollowed out find the surface area of remaining solid

Answer 1

Answer:

surface area of remaining solid

csA of cylinder + area of circle+ cSA of cone

Step-by-step explanation:

2πrh+πr^2+πrl

2*22/7*6*20+22/7*6*6+22/7*6*10

240π+36π+60π

336π cm^2

OR

336*22/7

48*22

1056cm^2