Which three lengths could be the lengths of the sides of a triangle? a. 12cm, 19cm, 7cm b. 23cm, 5c, 13cm c. 7cm, 18cm, 13cm d. 11cm, 8cm, 19cm

Scenario: susan wants to make 2 square flags to sell at a crafts fair. the fabric she wants to buy is 3 meters wide. she doesn't want any fabric left over. what's the least amount of fabric she should buy? question: which equation will susan solve her problem? note: let x represent the length of 1 side of the flag. options: 1) 2x^2 = 4x 2) 8 +2x = 2(4x) 3) 2 * 2 = 4 * 2 4) 4x^2 -2x = 0