In a right triangle, if the length of the adjacent side to angle $x$ is $5$ units and the hypotenuse is $13$ units, what is the value of $\cos \left(x\right)$?

If the measure of arc QS is $4x-18$ degrees and arc QS is a semicircle, what is the value of $x$?

In right triangle $JKM$, if angle $K$ is the right angle, which of the following correctly expresses $sinJ$ in terms of the side lengths?

Which of the following best describes the difference between a $\mathrm{tangent}$ and a $\mathrm{chord}$ in a $\mathrm{circle}$?

Given a right triangle with angle $\mathrm{FGE}$ and the side opposite to $\mathrm{FGE}$ has length $a$, the side adjacent to $\mathrm{FGE}$ has length $b$, and the hypotenuse has length $c$, which equation can be used to find the measure of angle $\mathrm{FGE}$?

Given a right triangle ABC with right angle at C, which of the following is the correct trigonometric ratio for $\angle A$?

In kite KLMN, if angle K is $49°$ and angle L is $99°$, what is the measure of angle LMN?

In right triangle $PSQ$, angle $PSR$ measures $99°$. What is the measure of angle $PSQ$ in degrees?

Given a right triangle with an angle of $35°$ and an adjacent side of length $5$, which equation can be used to solve for the hypotenuse $c$?