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, 1998

Geometry Difficulty 1.0 Junior Find the answer Canada

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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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.