allery7 cm ବ୍ୟାସାର୍ଦ୍ଧ ଏବଂ 5 cm ଉଚ୍ଚତା ବିଶିଷ୍ଟ ଏକ ଡ୍ରମର ବକ୍ର ପୃଷ୍ଠତଳର କ୍ଷେତ୍ରଫଳ କେତେ? (pi = 22/7)
A154 sq cm
B440 sq cm
C110 sq cm
D220 sq cm
Answer & Solution
Correct answer: D. 220 sq cm
ବକ୍ର ପୃଷ୍ଠତଳ କ୍ଷେତ୍ରଫଳ ହେଉଛି 2 pi r h = 2 x 22/7 x 7 x 5 = 220 square centimetres।
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