Subject
Quantitative Aptitude
Topic
Areas & Volumes
If the volume of a cube is 729 cm3, then the surface area of the cube will be -
If the volume of a cube is 729 cm3, then the surface area of the cube will be -
ক)
456 cm2খ)
466 cm2গ)
476 cm2ঘ)
486 cm2Explanation
(প্রশ্ন- যদি একটি ঘনকের আয়তন 729 cm 3 হয় তবে ঘনকের সমগ্রতলের ক্ষেত্রফল হবে -) ঘনকের বাহুর দৈর্ঘ্য a হলে আয়তন a 3 প্রশ্নমতে,a 3 = 729 a = 3 √729 = 9 cm অতএব ঘনকের সমগ্রতলের ক্ষেত্রফল =6a 2 =6×(9) 2 =486 cm 2Related questions
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