Question

substitute the given values into the given formula and solve for the unknown variable. if necessary, round to one decimal place.
p = a + b + c; p = 37, a = 7, b = 12 (perimeter of a triangle)
c =

Explanation:

Step1: Substitute the values into the formula

Given \( P = a + b + c \), substitute \( P = 37\), \(a = 7\), and \(b = 12\) into the formula:
\(37=7 + 12 + c\)

Step2: Simplify the right - hand side

First, calculate \(7+12\):
\(7 + 12=19\), so the equation becomes \(37=19 + c\)

Step3: Solve for \(c\)

Subtract 19 from both sides of the equation:
\(c=37 - 19\)
\(c = 18\)

Answer:

\(18\)