alleryଗୋଟିଏ ବୃତ୍ତର ବ୍ୟାସାର୍ଦ୍ଧ 9 cm ଅଟେ। ଏହାର ଦୀର୍ଘତମ ଜ୍ୟାର ଦୈର୍ଘ୍ୟ କେତେ?
A18 cm
B9 cm
C12 cm
D15 cm
Answer & Solution
Correct answer: A. 18 cm
ଦୀର୍ଘତମ ଜ୍ୟା ହେଉଛି ବ୍ୟାସ, ବ୍ୟାସାର୍ଦ୍ଧର ଦୁଇଗୁଣ, ତେଣୁ 18 cm ଅଟେ।
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