# If the perimeter of a **scalene** triangle is 54.6 cm. What equation can be used to find the value b if side a **measures** 8.7 cm.?

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The equation that can be used to find the value of side ( b ) if side ( a ) measures ( 8.7 ) cm in a scalene triangle, given that the perimeter is ( 54.6 ) cm, is:

[ a + b + c = \text{perimeter} ]

Substitute the known values:

[ 8.7 + b + c = 54.6 ]

where ( c ) represents the length of the third side of the triangle.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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