Tristan has a square back yard with an area of 225ft sq. He started to plant grass seed but only did half his yard. What is the diagonal length across his yard? Hint, use the area to find the length of one side of the yard, and then use 45-45-90 triangles to find the hypotenuse Grass 21.2 ft 15.8 ft​

Apolygon is shown on the graph: a polygon is shown on the coordinate plane. vertices are located at 3 comma 5, 1 comma 3, 1 comma 1, 2 comma 0, 4 comma 0, 5 comma 1, and 5 comma 3. what effect will a translation 3 units down and 2 units left have on the polygon? be sure to address how it could impact the angles, side lengths, and congruency between the original pre-image and the image. xd i need