Answer:
*Note: Perimeter is equal to the sum of all side lengths
1. 3cm + 3cm + 5cm + 4cm = 6cm + 9cm = 15cm
2. 3.5cm + 3cm + 3.5cm + 3.5cm + 3cm + 3.5cm
= 6cm + 7cm + 7cm = 6cm + 14cm = 20cm
3. 2cm + 3cm + 3cm + 3cm + 5cm + 6cm = 5cm + 6cm + 11cm
= 11cm + 11cm = 22cm
7. 9cm + 9cm + 9cm = 27cm
8. Perimeter of a rectangle = 2 times the length plus 2 times the width
P = 2(60m) + 2(48m) = 120m + 96m = 216m
9. 1 roll of 16m of wire = $3,214
216m/16m = 13.5 rolls of wire
13.5 rolls($3,214) = $43,389