7. A game requires its players to run
around a square playground. Each
side of the playground is 20 m long.
One player took 5 rounds around the
playground. How many metres did he
run altogether?
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Answer:
Each side =20m
5rounds covered
so area of the field is =side^2
20×20=400m^2
perimeter=20×4=80m
total metres covered =80×5=400m
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