Question

what is the difference in height between 30 m up a cliff and 87 m up a cliff? What is the distance between these positions?

Answer 1

87m - 30m = 57m
The answer is 57m.

Answer 2

The difference in height can be determined by subtracting 30 m from 87 m

87 m - 30 m = 57 m

The distance between these two points is 57m