railway RPF SI Mock Test Series 2024 Quantitative Aptitude Mensuration Solid Figures

ଯଦି ଉଚ୍ଚତା h ଏବଂ ବ୍ୟାସାର୍ଦ୍ଧ r ର ଏକ କଠିନ ଡାହାଣ ବୃତ୍ତାକାର ସିଲିଣ୍ଡରର ବକ୍ର ପୃଷ୍ଠ କ୍ଷେତ୍ରଫଳ ଏହାର ସମୁଦାୟ ପୃଷ୍ଠର ଏକ ତୃତୀୟାଂଶ, ତେବେ:

1

h = 2r

2

h = r

3

h = (\(1\over3\))r

4

h = (\(1\over2\))r

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