Q.
Ans. 50 circular plates each of radius 7 cm and thickness 0.5 cm are placed above another to form a solid right circular cylinder . find the total surface area and volume of the cylinder so formed.
Ans. TSA of right circular cylinder-2πr(h+r)
=2×22/7×7(0.5×7)
=11×0.5×7
=38.5 Ans.
hence, the volume of circular cylinder so formed is 38.5
i hope this help you
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Step-by-step explanation:
each radius =7
thick ness means height
height = 0.5
circumference of a circle =22πr
π =22/7
22/7
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