jagrutmahendra6 jagrutmahendra6

01-03-2020
Mathematics

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calculate the total surface area of this hemisphere radius 9 give your answer in 1 decimal place

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amna04352 amna04352

01-03-2020

Answer:

763.4 units²

Step-by-step explanation:

Curved SA = 2×pi×r²

= 2×pi×9² = 162pi units²

Circular base = pi×r²

= pi×9² = 81pi units²

Total = 162pi + 81pi = 243pi units²

= 763.4070148 units²

= 763.4 units²

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