Answer:
When it is reflected across y=-2, the new location will be at (-5,-4)
Step-by-step explanation:
y=-2 is a horizontal line. The points B(-5,0) is 2 units above that point. So, when reflected, it will move 4 units down, which gives you (-5,-4).
The square root of 83 is 9.11043357914, so I guess it goes on 9.1
Reflect triangle ABC across the (y) axis, then transfer (x-7). Then ABC will be at ABC.2
P = 2(L + W)
P = 126
L = 2W
so basically, ur system is :
126 = 2(L + W)
L = 2W