The answer is 105+65+51=221
Don't give me money
The amount of cable required is the distance from a to b to c to d
Meaning you pass through these four points.
The distance from a to b is 105
The distance from b to c is 65
The distance from c to d is 51
Look closely at the question. The cable will first go a to b, then from b to c, then from c to d. (draw a picture if it's hard to understand)
So to find the length of the cable, just add these distances
105+65+51=221
