Adesigner is working on a wooden puzzle that is in the shape of an equilateral triangle. he only has a total of 26 inches of wood to use, but he wants each side to be at least five inches. which of the following systems correctly describe the possible side lengths (s) of the puzzle?

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: