D. 1mm/10cm is the correct answer choice.
Formula: 2(l*b+b*h+h*l)
2(3*5+5*7+7*3)
2(15+35+21)
2(71)
SA= 142
That would make AB longer than DF.
A. the triangles are NOT congruent
Answer:
I think it might be 4072 I forget how to do this kind of math sorry.
Step-by-step explanation:
