The height of the triangle would be
7.2 bc
10x7.2:72
So to find the area of a triangle u have to divide by 2, so
72 divided by 2 is 36, so 7.2 is the height
I think 55 because you would multiply 11×5
1, 1.84+2= 1.84+2.00=3.84
3, 0.90+2= 0.90+2.00 = 2.90
4, 0.5+5= 0.5+5.0=5.5
Do you want more?