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ଏକ ଆୟତକ୍ଷେତ୍ରର ମାପ 15 m × 20 m ଅଟେ। ଏହାର କର୍ଣ୍ଣର ଦୈର୍ଘ୍ୟ କେତେ?

A30 m
B25 m
C20 m
D35 m
Answer & Solution
Correct answer: B. 25 m
କର୍ଣ୍ଣ ହେଉଛି 225 + 400 = 625 ର ବର୍ଗମୂଳ, ଯାହା 25 m ଅଟେ।
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