the radius of a cone is 5 cm and height is 12 cm then find C.S.A and volume of the cone
Answers
Answered by
5
r=5cm
h=12
l=root (h^2+r^2)
l=root (12^2+5^2)
l= root (144+25)
l=root169
l=13cm
CSA=pie ×r ×l
=22/7×5×13
=1430/7
=208.28cm^2
volume=1/3pie r^2 h
=1/3×22/7×5×5×12
=6600/2
=314.28cm^3
h=12
l=root (h^2+r^2)
l=root (12^2+5^2)
l= root (144+25)
l=root169
l=13cm
CSA=pie ×r ×l
=22/7×5×13
=1430/7
=208.28cm^2
volume=1/3pie r^2 h
=1/3×22/7×5×5×12
=6600/2
=314.28cm^3
Anonymous:
hope it helps
pls mark as best
thanks
why u didn't mark mine as best?
-_-I answered it first!
oh i am sorry without knowing i clicked tat another answer as brainliest i am so so sorry i am sure u r the brainliest
:(
HAPPY HOLI! !
Answered by
1
Slant height(l) = sqr root(r^2 + h^2)
= sqr root (5^2 + 12^2)
= sqr root (25+144)
= sqr root (169)
= 13
CSA = Pi*r*l
=22/7 * 5 * 13
= 204.28
Volume = 1/3 Pi r^2 h
= 1/3 * 22/7 * 25 * 12
= 314.28
= sqr root (5^2 + 12^2)
= sqr root (25+144)
= sqr root (169)
= 13
CSA = Pi*r*l
=22/7 * 5 * 13
= 204.28
Volume = 1/3 Pi r^2 h
= 1/3 * 22/7 * 25 * 12
= 314.28
units are missing, otherwise the ans is correct
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