2. Trigonometric Functions on Right Triangles

Given a right triangle where the measure of angle $\angle 6$ is $32°$, what is the sum $m\angle 4+m\angle 5$ in degrees?

In right triangle $△abc$, if side $ac$ = $5$ mm, side $ab$ = $3$ mm, and side $bc$ = $4$ mm, what is $\sin a$?

In a right triangle, what is the definition of $\sin$ of an angle $\theta$?

Which of the following expressions can be used to find the measure of angle $B$ in a right triangle if the lengths of the sides opposite and adjacent to $B$ are known?

Given a right triangle where angle $\theta$ is one of the non-right angles, the side opposite $\theta$ has length $3$, the side adjacent to $\theta$ has length $4$, and the hypotenuse has length $5$, what is the value of $tan\left(\theta \right)$?

Given a right triangle where one of the acute angles is $\theta$, and the side opposite $\theta$ has length $3$, the side adjacent to $\theta$ has length $4$, and the hypotenuse has length $5$, what are the exact values of the six trigonometric ratios for angle $\theta$?

Given a right triangle with angles $A$, $B$, and $C$, where $C$ is the right angle, if $m\angle A=m\angle B$ and $m\angle A+m\angle C=m\angle D$, what is the measure of angle $D$?

Given a right triangle where angles $A$ and $B$ are acute and $A$ is supplementary to $B$, which of the following relationships is false?

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 $b$? $\tan (30°)$ =

If a sector of a circle has a central angle of $72°$, what is the ratio of the area of the sector to the area of the entire circle?

Given a right triangle DEF with right angle at $E$, which of the following trigonometric ratios are correct for angle $D$? Select the correct option.

Given that $\cos b$ = $\sin a$ and $ma=32°$ in a right triangle, what is the value of $mb$?

In the context of right triangles, how do rays $ab$ and $ac$ relate to the formation of an angle at vertex $a$?

Given a right triangle $△abc$, which of the following triangles represents the image after applying the sine function to angle $A$ to find the ratio of the length of the side opposite angle $A$ to the hypotenuse?