Answer:
384
Step-by-step explanation:
I got the area of the hidden square (Just add the same triangle to the ramp, it makes a square). Now, I divided that by 2 to just get 1 triangle.
janelles score is 62
Square Perimeter = 4(4x-1)
Rectangle Perimeter = 2(2x+1) + 2(x+2)
Square Perimeter = Rectangle Perimeter
4(4x-1) = 2(2x+1) + 2(x+2)
16x - 4 = 4x + 2 + 2x + 4
16x - 4 = 6x + 6
-6x +4 -6x +4
10x = 10
x = 1
Answer: 3a+6a+6+6
