Answer:
7.2
Step-by-step explanation:
Use the distance formula:
d = [tex]\sqrt{(x2-x1)^2+(y2-y1)^2}[/tex]
Points of the diagonal: (-2, -2) and (2, 4)
d = [tex]\sqrt{(2-(-2))^2+(4-(-2))^2}[/tex]
d = [tex]\sqrt{(2+2)^2+(4+2)^2}[/tex]
d = [tex]\sqrt{(4)^2+(6)^2}[/tex]
d = [tex]\sqrt{16 + 36}[/tex]
d = [tex]\sqrt{52}[/tex]
d ≈ 7.2
