Answer:
We have 4 x ( 3 / 2 ) = 12 / 2 = 6;
Step-by-step explanation:
-3x-2x+12x+5x=-9
-5x+12x+5x=-9
-5x+17x=-9
-12x=-9
x=-9+12
×=-3
Answer:
square
Step-by-step explanation:
all sides have the same length 
all vertices form 90 degree angles
Answer:

Step-by-step explanation:

hope this helps
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