- Triangle ABC is an equilateral triangle. If its perimeter is 24, what is the length of AC?
(F) 3
(G) 4
(H) 6
(J) 8
(K) 12- Circle O above has a diameter of 6, an area of b square units, and a circumference of c units. What is the value of b + c?
(A) 9 π
(B) 15 π
(C) 18 π
(D) 36 π
(E) 48 π- If what is the value of y when