alleryr ବ୍ୟାସାର୍ଦ୍ଧ ଏବଂ h ଉଚ୍ଚତା ବିଶିଷ୍ଟ ଏକ ସଳଖ ସିଲିଣ୍ଡରର ବକ୍ର ପାର୍ଶ୍ୱ ପୃଷ୍ଠତଳର କ୍ଷେତ୍ରଫଳ କେଉଁ ସୂତ୍ର ଦ୍ୱାରା ମିଳେ?
Api * r^2
B2pi * r * h
Cpi * r^2 * h
D4pi * r^2
Answer & Solution
Correct answer: B. 2pi * r * h
ଏକ ସଳଖ ସିଲିଣ୍ଡରର ବକ୍ର ପାର୍ଶ୍ୱ ପୃଷ୍ଠତଳର କ୍ଷେତ୍ରଫଳ 2 * pi * r * h ଦ୍ୱାରା ଦିଆଯାଏ।
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