allery7 cm ବ୍ୟାସାର୍ଦ୍ଧ ବିଶିଷ୍ଟ ଏକ ଗୋଲକର ପୃଷ୍ଠତଳ କ୍ଷେତ୍ରଫଳ ନିର୍ଣ୍ଣୟ କରନ୍ତୁ (pi = 22/7)।
A154 cm²
B308 cm²
C1437 cm²
D616 cm²
Answer & Solution
Correct answer: D. 616 cm²
ପୃଷ୍ଠତଳ କ୍ଷେତ୍ରଫଳ ହେଉଛି 4 pi r squared = 4 x (22/7) x 49 = 616 square centimetres।
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