Question

find the perimeter. 15 in 9 in 12 in p = ? in

Explanation:

Step1: Recall the formula for perimeter of a triangle

The perimeter \( P \) of a triangle is \( P=a + b+ c\), where \(a\), \(b\), and \(c\) are the side - lengths of the triangle.

Step2: Identify the side - lengths

Here, \(a = 15\) in, \(b = 9\) in, \(c = 12\) in.

Step3: Calculate the perimeter

\(P=15 + 9+12\)
\(P=(15 + 9)+12\)
\(P = 24+12\)
\(P=36\)

Answer:

\(36\)