Suppose you have 3 pieces of string measuring 6 inches, 9 inches, and 12 inches. how many unique triangles can you form with these pieces of string? a. 0 b. 1 c. 2 d. infinitely many

(c) the diagram shows the first three shapes of a matchsticks arrangement. first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.