This is right solution:
12^2+9^2=The third side^2
144+81=The third side^2
225=The third side^2
√225=The third side
15=The third side
Hope it helps....
1200, (2)3+(2)2+2 = 6+4+2 = 12 12(100)= 1200
Just read what it says not that hard go to the left twice and go up 4 units.
Hope you have a good day
Coplanar lines are R, U, and V
