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OpenStudy (anonymous):
Find the width of a rectangle if the length is 12 cm and the perimeter is 40 cm Find the width of a rectangle if the length is 12 cm and the perimeter is 40 cm @Mathematics
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hero (hero):
(40-24)/2
jhonyy9 (jhonyy9):
us 2w+2l=P
hero (hero):
l = 8
OpenStudy (anonymous):
yea i got it thanx hero
OpenStudy (anonymous):
perimeter= Sum of all sides so, 40=2*(12+b); 20=12+b; b=8; njoy
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