Answer:
5
Step-by-step explanation:
AB=
[tex] \sqrt{ {(x2 - x1)}^{2} + {(y2 - y1)}^{2} } \\ \\ \sqrt{ {4}^{2} + {3}^{2} } = 5[/tex]
I think 5
no of horizontal blocks = 4
number of vertical blocks = 3
using Pythagoras theorem
c^2 = 4^2 + 3 ^2
= 16 + 9
= 25
c = 5
