Find the total surface area of solid circular cone with base radius 3cm and slant height 4cm. [Take π = 22/7]

a

37 5/7cm2

b

66cm2

c

75 3/7cm2

d

78 2/7cm2

e

88cm2

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Correct Option
b

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Discussions (7)

kriboy
12 years ago

d ans is c..y shd i miss it?

samarazx4
11 years ago

haha.. The ansa in correct guys.. They jst confuse yu wit d english.

optimistic_jay
12 years ago

Wrong answer.....its supposed to be C

SHEGZZ
11 years ago

Myschool..A cone has a curved surface area + area of a circle(d base)=¥rl +¥r^2=¥r(r+l)..But we ar given h nt l..Den l(slant hight)x^2=4^2+3^2=16+9=root 25=5..We av 22/7*3(3+5)=75 3/7...(C)

#Opeyemi
11 years ago

i think it 'e'

ecugwu
1 year ago

NO ANSWER

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