plese see the photo and gave the answer.. number 9
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1)perimeter =sum of all side
all side are equal so
p=13×3
p=39
2) p=sum of all side
all side are different so
p=13+12+5
p=30
3)p=11+11+8
p=30
all side are equal so
p=13×3
p=39
2) p=sum of all side
all side are different so
p=13+12+5
p=30
3)p=11+11+8
p=30
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jenny21:
in which class do you read
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