Question

a solid cone of radius 4cm and hight 3cm has to paint from outside exept the base find surface are to be painted

Answer 1

for cone,

r = 4 cm

h = 3 cm

l2=r2 + h2

therefore l = 5 cm

now,

CSA of cone= πrl

  =22/7 x 4 x 5

  =440/7 = 62.85 cm2

The surface area to be painted is 62.85 cm2

Answer 2

62.85 cm² is the answer