Q: The average length of the sides of triangle ABC is 12. What is the perimeter of triangle ABC?
Options:
(A) 4
(B) 6
(C) 12
(D) 24
(E) 36
A: (E)
Explain how we arrive at this answer:
Explanation: (average) = (perimeter)/3;
12 = (perimeter)/3;
(perimeter) = 36.