Draw this out. Start with the two points you’re given.
![image](https://i0.wp.com/78.media.tumblr.com/1c6a3380212919910ad0995dd6650a11/tumblr_inline_pf68fhUf6E1qio24w_540.png?w=852&ssl=1)
Now remember that the shape is a rectangle, and that you’re told that point B is on the x-axis. The only way that happens is if B is at (5, 0). Point D, by the same logic, must be at (–3, 2).
![image](https://i0.wp.com/78.media.tumblr.com/c3fa4dc6d7b786f0cef11c146f1249c8/tumblr_inline_pf68kmOtNX1qio24w_540.png?w=852&ssl=1)
Now draw the rectangle and measure the lengths. The long ends have length 8, and the short ends have length 2.
![image](https://i0.wp.com/78.media.tumblr.com/34d78aa1ead67b23ce740ad0f117f485/tumblr_inline_pf68nx9sIf1qio24w_540.png?w=852&ssl=1)
Therefore, the perimeter is 8 + 2 + 8 + 2 = 20.
from Tumblr https://ift.tt/2Ou1zED