The first side of a triangle measures 4 in. less than the second side, the third side is 3 in. more than the first side, and the perimeter is 15 in. how long is the third side? if s represents the length of the second side, which of the following represents the length of the third side?

Answer with Step-by-step explanation:

s represents the length of the second side

The first side of a triangle measures 4 in. less than the second side.

⇒ Length of first side=s-4

The third side is 3 in. more than the first side.

⇒  Length of third side=s-4+3=s-1

⇒ Length of third side=s-1

Perimeter of triangle=15 in.

⇒ s+(s-4)+(s-1)=15

⇒ 3s-5=15

⇒ 3s=20

⇒ s=6.66

⇒ s-1=5.66

Hence, Length of third side=5.66 in.

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step-by-step explanation: