In square $ABCD$, what is the measure of angle $\angle BAC$?

Given a right triangle with an angle of $30°$ and opposite side $a$ and adjacent side $b$, which equation can be used to solve for $b$? $\tan (30°)$ =

Given right triangle JKL, where angle $K$ is the right angle, if $\mathrm{JK}$ = $5$, $\mathrm{KL}$ = $12$, and $\mathrm{LJ}$ = $13$, what is the value of $sinJ$?

Given a right triangle with vertices at $(0,0)$, $(4,0)$, and $(4,3)$, let point $z$ be $(4,0)$ and line $ab$ be the segment from $(0,0)$ to $(4,0)$. Which of the following points lies on the line that passes through point $z$ and is perpendicular to line $ab$?

Given a right triangle with an angle of $30°$ and an adjacent side of length $8$, which equation can be used to solve for the length $b$ of the side opposite the $30°$ angle?

Given a right triangle with sides $a$, $b$, and hypotenuse $c$, and angle $\angle lkj$ opposite side $a$, which equation can be used to find the measure of angle $\angle lkj$?

Which of the following statements about $\mathrm{secants}$ and $\mathrm{chords}$ in a $\mathrm{right}\mathrm{triangle}$ is true?

In right triangle $ABC$, angle $C$ is the right angle, side $AB$ is $10$ units, and side $BC$ is $6$ units. What is the measure of angle $BAC$? Round to the nearest whole degree.

Given a right triangle QSR with right angle at S, if $qs$ is one leg and $qr$ is the hypotenuse, what is the measure of angle $qsr$ in degrees?