Chapter 10.3, Problem 32E

Which formula would you use to establish each of the following claims?

a) The coordinates of $X$ are $\left(d, c\right)$.

b) $m_{\stackrel{-}{VT}}=0$

c) $\stackrel{-}{VT}║\stackrel{-}{RS}$

d) The length of $\stackrel{-}{RV}$ is $2\sqrt{d^2+c^2}$

Trapezoid $RSTV$; $X$ is the midpoint of $\stackrel{-}{RV}$.