find the curved surface area and the total surface area of a right circular cylinder with height 40 cm and the radius of the base 4.2 CM.
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Radius of cylinder = 4.2 cm
Height of cylinder = 40 cm
CSA = 2πrh
= 2*22*4.2*40/7
= 44*0.6 *40
= 44 * 24
= 1056 cm^2
TSA = 2πr(h+r)
= 2*22*4.2(40+4.2)/7
= 44*0.6 * 44.2
= 1166.88
Height of cylinder = 40 cm
CSA = 2πrh
= 2*22*4.2*40/7
= 44*0.6 *40
= 44 * 24
= 1056 cm^2
TSA = 2πr(h+r)
= 2*22*4.2(40+4.2)/7
= 44*0.6 * 44.2
= 1166.88
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