Question

simplify एक अर्धगोले का व्यास ' है। अर्धगोले का वक्र पृष्ठीय क्षेत्रफल ज्ञात कीजिए।

The diameter of a hemisphere is 'r'. Find the curved surface area hemisphere.​

Answer 1

Step-by-step explanation:

Given

Diameter of hemisphere = R

Radius of hemisphere = R/2

$c \: s \: a \: of \: hemisphere \: = 2\pi {r}^{2}$

$= 2 \pi\frac{R \times R}{2 \times 2}$

$= \pi \frac{ {R}^{2} }{2} \: \: \: \: \: ans$

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