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OpenStudy (anonymous):
A 3-ft.-wide sidewalk surrounds the outside of a rectangular plot that measures 20 ft. by 30 ft. Find the area of the sidewalk.
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OpenStudy (anonymous):
it has no pic!
OpenStudy (anonymous):
26*3 +26*3 + 30*3 +30*3 78 + 78 + 90 + 90 136 ft^2
OpenStudy (anonymous):
sry 336 ft^2
OpenStudy (anonymous):
(26*36)-(20*30)=336
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