To find the perimeter of a triangle, you need to add up the lengths of all its sides. Here we'll calculate the perimeter of a triangle with sides measuring 11 inches, 5 inches, and 12 inches.
Step-by-Step Solution:
1. Identify the lengths of the sides of the triangle:
- Side 1: 11 inches
- Side 2: 5 inches
- Side 3: 12 inches
2. Add the lengths of the three sides together to get the perimeter:
[tex]\[
\text{Perimeter} = \text{Side 1} + \text{Side 2} + \text{Side 3}
\][/tex]
3. Substitute the given side lengths into the formula:
[tex]\[
\text{Perimeter} = 11 + 5 + 12
\][/tex]
4. Perform the addition:
[tex]\[
\text{Perimeter} = 28 \text{ inches}
\][/tex]
Therefore, the perimeter of the triangle is 28 inches.
The correct answer is: 28 inches.
