Question

The total surface area of a solid hemisphere of
diameter 2 cm
is equal to​

Answer 1

Answer :- 9.42 cm²

$\bf\huge\underline{\underline{ Given :- }}$

• given is a hemisphere

• d = 2 cm

$\bf\huge\underline{\underline{ To \: Find:- }}$

• TSA of Hemisphere

$\bf\huge\underline{\underline{ Answer :- }}$

• diameter = 2 cm

• radius = 1 cm

• $\boxed{\bf\red{TSA \: of \: Hemisphere = 3πr²}}$

• TSA = 3 × π × 1²

• TSA = 9.42 cm²

$\rule{10cm}{0.05cm}$

Answer 2

Step-by-step explanation:

The total surface area of a solid hemisphere is 3$\pi$r²

Here r =$\frac{2}{2}$

$\: \: \: \: \: \: \: \: \: \: \: \:$ = 1cm ( radius is half of diameter)

Therefore,

The total surface area = 3$\pi$1²

$\: \: \: \: \: \: \: \: \: \: \: \:$ = 3$\pi$ cm²