chu vi Flashcards

1
Q

P hcn

A

(a+b)x2

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2
Q

P hình bình hành

A

(a+b)x2

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3
Q

P hình vuông

A

a x4

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4
Q

P hình thoi

A

a x4

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5
Q

P tam giác, hình thang

A

cộng các cạnh

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6
Q

chu vi hình tròn

A

d.pi
2r.pi

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