What is the area of the raceway that is 2 m wide, which surrounds an 80 m long and 50 m wide rectangular playground?
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Answer:
Outer Dimensions of park
l=50+2+2=54
b=36+2+2=40
Area of track =lb−l
′
b
′
=(54)(40)−(50)(36)
=2160−1800
=360m
2
.
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