Δabc is similar to δdef. the ratio of the perimeter of δabc to the perimeter of δdef is 1 : 10. if the longest side of δdef measures 40 units, what is the length of the longest side of δabc ? a. 2 units b. 4 units c. 16 units d. 30 units

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