alleryଏକ ବୃତ୍ତର କ୍ଷେତ୍ରଫଳ 154 sq cm (pi = 22/7) ଅଟେ। ଏହାର ବ୍ୟାସ କେତେ?
A22 cm
B14 cm
C7 cm
D28 cm
Answer & Solution
Correct answer: B. 14 cm
ବ୍ୟାସାର୍ଦ୍ଧର ବର୍ଗ ହେଉଛି 154 x 7/22 = 49, ତେଣୁ ବ୍ୟାସାର୍ଦ୍ଧ ହେଉଛି 7 cm ଏବଂ ବ୍ୟାସ ହେଉଛି 14 cm।
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