Question

write the formula used to calculate the total surface area of a hemisphere solid of radius 'r'

Answer 1

3pie r square.........

Answer 2

Answer:

$Total \: surface \: area \:of \\Hemisphere =3\pi r^{2}$

Step-by-step explanation:

$Given \\radius \: of \: a \: hemisphere = r$

$Total \: surface \: area \:of \\Hemisphere\\ = Curved \: surface \: Area + Base \: Area \\=2\pi r^{2}+ \pi r^{2}\\=3\pi r^{2}$

Therefore,

$Total \: surface \: area \:of \\Hemisphere =3\pi r^{2}$

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