A cylindrical wooden piece is 19.4cm long. Find the surface area of the wooden piece if its diameter is 14cm.
help me i need it urgently in online exam
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Step-by-step explanation:
d=14cm
r=14/2=7cm
a cylindrical wooden piece =19.4cm
SA of cylindrical wooden piece= 2πr(r+h)
= 2×22/7×7(7+h) =19.4
44×7+h =19.4
308+h=19.4
h=308/19.4
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