A cylidrical iron rod 25cm long has a diameter of2.8cm. What is its surface area
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Answer:116.16
Step-by-step explanation:
surface area =22/7*radius*(hight +radius)
Radius=dimater/2
2.8/2=1.4cm
Hight=length=25cm
Surface area = 22/7*1.4*(25+1.4)
=4.4*26.4
=
166.16
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