Question

find the total surface area of solid opened at top in the given figure​

Answer 1

Step-by-step explanation:

Total surface area of solid = Curved surface area of cylinder + Curved surface area of hemisphere

$\\ \: \: \: \: \tt=2 \pi r h+2 \pi r^{2} \\ \boxed{ \red{\tt =2 \pi r(h+r) }}$

$\rule{300pt}{0.1pt}$

Answer 2

Step-by-step explanation:

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