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ज्या चौकोनाची बाजू $7$ सेंमी.

A$28$ cm²
B$42$ cm²
C$49$ cm²
D$56$ cm²
Answer & Solution
Correct answer: C. $49$ cm²
एक चौकोनी $= \text{side}^2 = 7^2 = 49$ cm² चें क्षेत्रफळ.
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