Given the points $(3,5)$ and $(-3,-5)$, which points are reflections of each other across both axes?

Which of the following is one of the basic ways to represent three-dimensional space in trigonometry?

Given two pairs of vectors, $a$ and $b$, and $e$ and $f$, if $a\cdot b$ = $0$ and $e\cdot f$ = $0$, what can be concluded about the relationship between each pair of vectors?

Given intersecting lines that form angles labeled $AFE$, $BFC$, $CFD$, $DFE$, and $EFA$, which pair of angles are vertical angles?

Let $MNOP$ be a square with vertices in order. If $t$ and $f$ are the magnitudes of the vectors $\overrightarrow{M}\overrightarrow{N}$ and $\overrightarrow{N}\overrightarrow{O}$ respectively, what are the values of $t$ and $f$ if the side length of the square is $1$? $t$ = $f$ =

Point S lies between points R and T on a straight line. If $RT$ is $10$ centimeters long and $RS$ is $4$ centimeters, what is the length of $ST$?

In which diagram are angles $1$ and $2$ vertical angles?

In circle O, if chord $AE$ has length $7$ units and passes through the center O, what is the radius of the circle?

Given two lines $a$ and $d$ that are non-coplanar, which of the following best describes their relationship?