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to find out the total area, use this:

[to find l, use = +, you'll get the value 3.94]

and do the same here, if you wanna find the volume, use this...
input the value and you'll get the answer. Hope it helped. ^_^
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If we want to find volume of cone then height=3.6 cm,radius=1.6cm[π=22/7]
1/3πr²h=1/3 x 22/7 x 1.6 x 1.6 x 3.6
=22/7 x 1.6 x 1.6 x 1.2
=22/7 x 3.072
= 9.654 cm³ [approx]
if we want to find the c.s.a [curved surface area ] of cone then,
l[slant height]=√3.6²+1.6²
=√12.96 +2.56
=√15.52 =3.939 cm² [approx]
c.s.a of cone=πrl

=19.8 cm²[approx]

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would you please tell me how to insert symbol of pi, and also square in answers?
first u do that when u writing the answers ,there was four button ,the third button u click for giving the symbols like square ,cube  
oh, ok
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