alleryএকটি রম্বসের বাহুর দৈর্ঘ্য 10 cm এবং একটি কর্ণের দৈর্ঘ্য 12 cm। এর ক্ষেত্রফল কত?
A96 cm²
B60 cm²
C120 cm²
D192 cm²
Answer & Solution
Correct answer: A. 96 cm²
অর্ধ-কর্ণ 6 এবং বাহু 10 থেকে অপর অর্ধ-কর্ণ পাওয়া যায় 8, সুতরাং কর্ণদ্বয় 12 এবং 16 হলে ক্ষেত্রফল হয় 96 square centimetres।
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