alleryএকটি ঘনকের সমগ্রতলের ক্ষেত্রফল 294 cm²। এর আয়তন কত?
A49 cm³
B294 cm³
C343 cm³
D216 cm³
Answer & Solution
Correct answer: C. 343 cm³
ছয়টি তল থেকে পাওয়া যায় 6a squared = 294, সুতরাং a = 7 এবং আয়তন হলো 343 cubic centimetres।
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