30 circular plates, each of radius 14 cm and thickness 3 cm are placed one above the another to form a cylindrical solid , find the TSA *
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Step-by-step explanation:
Radius of Cylinder =14cm
Height of Cylinder = 30×3 = 90cm
TSA of Cylinder = 2πr(r+h)
= 2×22/7 × 14 (14+90)
= 2×22×2×104
= 9152 cm² Ans.
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