ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!


    Question

    Taking any three of the line segments out of segments of

    length 2 cm, 5 cm, 7 cm and 8 cm, the number of triangles that can be formed is:
    A 2 Correct Answer Incorrect Answer
    B 5 Correct Answer Incorrect Answer
    C 3 Correct Answer Incorrect Answer
    D 4 Correct Answer Incorrect Answer

    Solution

    Check combinations: 2,5, 7:┬а 2+5 тЙд7 (Cannot form a triangle) 2,5, 8:┬а 2+5 тЙд8 (Cannot form a triangle) 2, 7, 8:2+7 > 8, 2+8> 7, 7+8> 2 (Forms a triangle) 5, 7, 8:5+7> 8,5 +8 > 7, 7+8> 5 (Forms a triangle) ┬а Valid triangles: 2,7,8 5,7,8 The number of triangles that can be formed is 2.

    Practice Next
    More Mensuration Questions

    Relevant for Exams:

    ask-question