I believe it should be ∆LKD because the parts should correspond with each other. D is a right angle in the first triangle and appears in the middle, so since K is the right angle of the second, it should also go in the middle.
I believe this is proven by HL because both hypotenuses are congruent, as is a pair of legs, and they are both right triangles.
Answer: (3, 5)
<u>Step-by-step explanation:</u>
y = x + 2 is already in Slope-Intercept format
- b = 2: Plot +2 on the y-axis
- m = 1: Count up 1 and right 1 from "b" to plot the next point
y = -x + 8 is already in Slope-Intercept format
- b = 8: Plot +8 on the y-axis
- m = -1: Count down 1 and right 1 from "b" to plot the next point
See attached graph
The perimeter is 4(7+3x) which is
= to 12x+28
1500 is your answer hope it helps