Let the side length of the square be x, then A = x^2
but diagonal (z) = sqrt(2x^2)
z^2 = 2x^2
x^2 = 1/2 z^2
Thus, A = 1/2 z^2
dA/dz = 1/2 (2z) = z
The rate of change is z.
When z = 4, the rate is 4.
35,030,000 is the correct answer, hope this helps.
I dunno.......................
Answer:
158 ribbons even half of one still counts.
Step-by-step explanation:
(4+10)*6/2. If it’s the area then it’s this. Make sure you put the 4 and 10 in brackets
