allery3 cm × 4 cm × 12 cm मोजमाप असलेल्या इष्टिकाचितीच्या सर्वात लांब कर्णाची लांबी किती आहे?
A13 cm
B19 cm
C15 cm
D11 cm
Answer & Solution
Correct answer: A. 13 cm
कर्ण हा 9 + 16 + 144 चे वर्गमूळ आहे, म्हणजेच 169 चे वर्गमूळ, किंवा 13 cm आहे.
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