Answer:
finding x
3x-2=x+6
2x=8
x=4
perimeter;
3[4]-2=10
width=10cm
length=
4+6=10
length =10
perimeter=2[l+w]
2 [10 +10]
perimeter=40cm
finding area;
area = l x w
10 x 10 =100cm²
Step-by-step explanation: