The shorter sides of a rectangle measure 4 inches each and one of its diagonals measures 8 inches. Which of the following is the measure of one of its longer sides? (1) 4√3 (3) 4√2 (2) 2 (4) 6

The answer is 4√3

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.