Question

Help me out

Length = m

Answer 1

`perimeter = a + b + c`

`perimeter = 4 + 3 + c`

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`{a}^(2) + {b}^(2) = {c}^(2)`

`{4}^(2) + {3}^(2) = {25}^(2)`

`√(25) = 5`

`c = 5 \: meters`

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`perimeter = 4 + 3 + 5`

`perimeter = 12 \: meters`

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`the \: length \: of \: the \: fencing \: is\: 12 \: meters`