Question

please tell step- wise
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Answer 1

Step-by-step explanation:

perimeter of triangle= AB+BC+CA=9.3+7+5.1=21.4cm

perimeter of square=4a=4*2.6=10.4cm

perimeter of rectangle=2(l+b)=2(5+250)=450cm

perimeter of regular pentagon=5a=5(3.5)=17.5cm

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