Answer:
B
Step-by-step explanation:
I added all of then and then subtracted 47 from the 50.
If you are talking about the area and perimeter of one of the triangular faces...
8 x 1.2 = 9.6
6 x 1.2 = 7.2
Perimeter = 9.6 + 7.2 + 7.2 = 24
Area = Linear Scale Factor²
1.2² = 1.44
7 x 1.44 = 10.08 (units)²
The answer is umu( M + m )
2x *3x =6x^2
2x*(-2)= -4x
5*3x=15x
5* (-2) =- 10
6x^2 -4x +15x -10
6x^2 + 11x -10
