A room is long

MATHEMATICS · Single correct · GCSE · Mathematics · Geometry and Measures · Geometry and Measures

Problem

A room is 6 m6\,\text{m} long, 4 m4\,\text{m} wide and 3 m3\,\text{m} high. A spider starts from one corner on the floor and wants to reach the farthest opposite corner on the ceiling by crawling first along the floor and then straight up a wall. What is the minimum distance it has to crawl? (a) 7.0 m7.0\,\text{m} (b) 7.8 m7.8\,\text{m} (c) 8.0 m8.0\,\text{m} (d) 9.2 m9.2\,\text{m}

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