allery6 cm বাহুবিশিষ্ট একটি ধাতব ঘনক গলিয়ে 9 cm × 6 cm ভূমির পরিমাপ বিশিষ্ট একটি আয়তঘনক তৈরি করা হলো। এর উচ্চতা নির্ণয় করুন।
A2 cm
B4 cm
C3 cm
D6 cm
Answer & Solution
Correct answer: B. 4 cm
আয়তন 216 cm³-ই থাকে, তাই উচ্চতা হলো 216 / 54 = 4 cm।
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