Answer:
third one is not true means wrong
Answer:
0
Step-by-step explanation:
2a+6=6
-6=-6
2a=0
2 2
a=0
Answer:
27in
Step-by-step explanation:
So, perimeter means we add all the sides together, as opposed to area, where we multiply them together.
9 - 5 = 4.
So the perimeter of the triangle would be:
3+4+
=12
5 + 5 + 4 +1 (the 1 is from 4 -3) = 15
15 + 12 = 27