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Pls help me the image in down below

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Pls help me the image in down below | | | | |-example-1

1 Answer

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Answer:

21 in = n

Explanation:

divide the perimeter by two and you will find the value of n + 15 2/4 (base + height), then find n with an equation

73 : 2 = 36.5

36.5 = n + 15 2/4

36.5 - 15 = n + 2/4

36.5 - 15 - 2/4 = n

21 = n

_________________

check

2 × (21 + 15 2/4) =

2 × 36.5 =

73

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