MathematicsMedium98×since 2002Q4819Let Tn{T_n}Tn be the number of all possible triangles formed by joining vertices of an n-sided regular polygon. If Tn+1−Tn{T_{n + 1}} - {T_n}Tn+1−Tn = 10, then the value of n is :A7B5C10D8Check answerSkip