Question
A piece of wire of length 80 cm is folded into the shape of a rectangle MNPQ. It is then folded at a corner as shown. NR = RP, RS = 8 cm. What is the length of MN?
2 m

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A piece of wire of length 80 cm is folded into the shape of a rectangle MNPQ. It is then folded at a corner as shown. NR = RP, RS = 8 cm. What is the length of MN?