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The perimeter of a triangle is 19 inches. One side measures 7 inches. Another side is 5 inches long.Find the length of the third side c.

User Amrutha Saj
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1 Answer

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Statement Problem: The perimeter of a triangle is 19 inches. One side measures 7 inches. Another side is 5 inches long.

Find the length of the third side c.

Solution:

Thus, the perimeter of a triangle with lengths a, b and c is;


P=a+b+c
\begin{gathered} \text{Let a=7inches, b=5inches, P=19inches} \\ c=P-a-b \end{gathered}

Thus, we have;


\begin{gathered} c=19-7-5 \\ c=7 \end{gathered}

Thus, the length of the third side is 7inches

The perimeter of a triangle is 19 inches. One side measures 7 inches. Another side-example-1
User Maulin
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