Chapter 4.1, Problem 18E

In Exercises 17 and 18, consider with $\stackrel{-}{VX}$ ⊥ $\stackrel{-}{RS}$ and

$\stackrel{-}{VY}$ ⊥ $\stackrel{-}{ST}$.

a) Which line segment is

the altitude of

with respect to base $\stackrel{-}{RS}$?

b) Which number is the

height of with respect to base $\stackrel{-}{RS}$?