allery3 cm by 4 cm by 12 cm জোখৰ এটা আয়তীয় ঘনকৰ আটাইতকৈ দীঘল কৰ্ণ কিমান?
A13 cm
B19 cm
C15 cm
D11 cm
Answer & Solution
Correct answer: A. 13 cm
কৰ্ণডাল হ'ল 9 + 16 + 144 ৰ বৰ্গমূল, যিটো হ'ল 169 ৰ বৰ্গমূল, অৰ্থাৎ 13 cm।
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