Find the volume and C.S.A andT.S.A a of cone perimeter of base is 88 cm and height is 48 cm
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Perimeter of base = 88
2πr = 88
r = 88/2π
r = 7cm
Volume = 1/3 πr^2
= 1/3 × 22/7 × 7 × 7
= 154/3
=51.33cm^3
l = √h^2 + r^2
l = √48^2 + 7^2
l = √2304 + 49
l = √2353
l = 48.50cm
CSA = πrl
= 22/7 × 7 × 48.50
= 22×48.50
= 1067cm^2
TSA = πr(l+r)
= 22/7 × 7 ( 48.50 + 7 )
= 22 ( 55.50 )
=1221 cm^2
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