The length of fence she will need to divide the garden is 9.22 m.
A Rectangle is a quadrilateral having four sides and four right angles in which both sides are parallel and opposite to each other.
The Pythagorean Theorem states that the sum of the squared sides of a right triangle equals the length of the hypotenuse squared.
Let us consider the length of the fence be 'x'
Using Pythagoras Theorem,
x² = 6² + 7²
[tex]x^{2} =36+49\\x^{2} = 85[/tex]
x = 9.22 m
So, the length of fence is 9.22 m.
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