What is the perimeter of a triangle with sides 11 inches. 5 inches, and 12 inches in length? Select the correct answer for the following.

a. 16 inches
b. 30 inches
c. 23 inches
d. 28 inches

The perimeter of a triangle is calculated by adding the lengths of all three sides.

Perimeter = 11 inches + 5 inches + 12 inches
Perimeter = 28 inches

Therefore, the correct answer is:

d. 28 inches