Answer:
10 units
Step-by-step explanation:
1. Do the square in the middle
2 x 2 = 4
2. Do the triangle on the left
2 x 2 divided by 2 = 2
3. Do the triangle on the right
4 x 2 divided by 2 = 4
4. Add them all up
4 + 2 + 4 = 10
Length = 2W
P= 2L + 2W
60 = 2(2W) + 2W
60= 4W +2W
60 = 6W
60/6W = 6W/6W
w = 10
Length = 2(10)
Length = 20
P= 2L + 2W
60= 2(20) + 2(10)
60= 40 +20
60 = 60