IBPS RRB Officer Scale-I Prelims practice question
The diagonal of a cuboid is 11 cm. If its length is 6 cm and its height is 7 cm, find its breadth.
From a IBPS RRB Officer Scale-I Prelims Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (B) 6 cm
Diagonal of a cuboid = √(l² + b² + h²). So 11² = 6² + 7² + breadth² → 121 = 85 + breadth² → breadth² = 36 → breadth = 6 cm.
हिंदी में प्रश्न
एक घनाभ का विकर्ण 11 cm है। यदि इसकी लंबाई 6 cm और इसकी ऊंचाई 7 cm है, तो इसकी चौड़ाई ज्ञात कीजिए।
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सही उत्तर: (B) 6 सेमी
घनाभ का विकर्ण = √(l² + b² + h²)। अतः 11² = 6² + 7² + चौड़ाई² → 121 = 85 + चौड़ाई² → चौड़ाई² = 36 → चौड़ाई = 6 cm।
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