alleryএকটি সুষম বহুভুজের পরিসীমা 40 cm এবং অ্যাপোথেম 6 cm। এর ক্ষেত্রফল কত?
A240 cm²
B46 cm²
C120 cm²
D60 cm²
Answer & Solution
Correct answer: C. 120 cm²
ক্ষেত্রফল হলো পরিসীমা এবং apothem-এর গুণফলের অর্ধেক, সুতরাং 0.5 x 40 x 6 = 120 square centimetres।
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