Question

a cylindrical drum has a length of 20cm and base radius of 14cm find its c.s.a and t.s.a​

Answer 1

Answer:

length = 20cm

radius =14cm

we know that,

c.s.a = 2πrh

c.s.a = 2×22/7×14×20

c.s.a = 1760cm^{2}

so,

t.s.a= 2πr(r+h)

= 2×22/7×14(14+20)

=44×2(34)

=2992cm^{3}

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