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Sagot :
Answer:
p=(l+b) 2
p=38
l+ b= 38/2=19
if=7.
l=19-7
= 12
Step-by-step explanation:
Answer:
12cm
Step-by-step explanation:
perimeter is l+l+b+b
b is 7
7+7+l+l
14+l+l=38
-14
l+l=24
2l=24
divide by 2
l=12cm
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