Answer:
Step-by-step explanation:
Use ratios to find x and y, then find AB and GH, them sum up the lengths.
Find x:
- 12/15 = x/10
- x = 12*10/15
- x = 8 in
Find y:
- 12/15 = 16/y
- y = 15*16/12
- y = 20 in
Find AB:
Find GH:
Find the perimeter:
- P = 6 + 15 + 20 + 10 + 37 + 8 + 16 + 12 = 124 in
