Question
Bahasa Melayu
Sebuah rangkaian mempunyai bucu P, Q, R dan S. Tepinya ialah PQ, QR, RS, SP dan PR. Berapakah bilangan tepi yang ada pada rangkaian itu?
English
A network has vertices P, Q, R and S. Its edges are PQ, QR, RS, SP and PR. How many edges does the network have?
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