Question

find the TSA and volumes of the following figure.​

Answer 1

94.245 cm^3

Step-by-step explanation:

Volume of given figure=Volume of cone+Volume of hemisphere

Volume of Cone=1/3πr^2h

=1/3×22/7×3×3×4

=22/7×12

=3.1415×12

=37.698 cm^3

Volume of hemisphere=2/3πr^3

=2/3×22/7×3×3×3

=2×3.1415×9

=56.547cm^3

Volume of given figure=37.698+56.547

=94.245cm^3

Answer 2

$\huge\sf\pink{Answer}$

☞ TSA is 103.72 cm² & Volume is 94.29 cm³

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$\huge\sf\blue{Given}$

✭ Height of the cone = 4 cm

✭ Radius of cone = 3 cm

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$\huge\sf\gray{To \:Find}$

◈ TSA & Volume of the cone?

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$\huge\sf\purple{Steps}$

So in the cone we are given the height and we have to find the slant height, which can be found by,

»» $\sf l = \sqrt{r^2+h^2}$

»» $\sf l= \sqrt{3^2+4^2}$

»» $\sf l = \sqrt{9+16}$

»» $\sf l = \sqrt{25}$

»» $\sf \green{l = 5 \ cm}$

Remaining answer has been Attached!!

$\sf\star\: Diagram \:\star$

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