The perimeter of the scalene triangle is 54.6 cm. which equation can be used to find the value of b if side a measures 8.7 cm? a. 8.7 + b = 54.6 b. 17.4 + b = 54.6 c. 26.1 + b = 54.6 d. 34.8 + b = 54.6

The answer is option B: 17.4+b=54.6

Step-By-Step Explanation:

A scalene triangle is a triangle whose 2 sides are equal and one side is different. Here, we have been given that one side is 8.7 cm. We can assume that the other side is also 8.7 cm and we have to find the third side. Let that side be = b

So, the perimeter is given as :

We have a and c as 8.7 and p=54.6

So, equation becomes:

Or,

Hence, option B is the right answer.

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step-by-step explanation:

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step-by-step explanation: