1) Volume of hemisphere a) 2πr² b) 2/3 πr³ c) 4πr³ 2) Area of four wall a) 2(l+b)h b) lb +lh c) l×b d) lb+bh+hl 3) Total surface Area of cylinder a) 2πrh b) 2πr(r+h) c) 2πrh+πr² d) πr²h 4) Lateral surface Area of cube a) 4a² b) 6a² c) a² d) 4a 5) If radius increased 20% after this reduces radius 20%the surface Area a) Lose4% b) Increased 4% c) Constant d) 400

Manish sir

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