একটি বর্গক্ষেত্??ের বাহুকে চার গুণ বড় করলে ক্ষেত্রফল কত গুণ বৃদ্ধি পাবে?
A. 2
B. 4
C. 8
D. 16
সঠিক উত্তরঃ
D.
16
Explanation:
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