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Problem 46

Geometry Difficulty 1.0 Find the answer CEMC Gauss (Grade 7) · Canada · 1998

A rectangular field is 80 m long and 60 m wide. If fence posts are placed at the corners and are 10 m apart along the 4 sides of the field, how many posts are needed to completely fence the field?

(A) $24$ (B) $26$ (C) $28$ (D) $30$ (E) $32$

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