In triangle $ABC$, the measure of angle $A$ is $58°$, and side $a$ is equal to side $c$. What is the measure of angle $C$?

Which of the following sets of angles can form a triangle?

In triangle $rst$, $r$ = $58$ cm, $\angle s$ = $48°$ and $\angle t$ = $29°$. Find the length of side $s$, to the nearest centimeter.

In triangle $FGH$, an angle bisector from vertex $G$ is perpendicular to side $FH$. If $FG=8$ and $GH=16$, what is the length of $FH$?

In triangle $ABC$, side $a$ is $11$ ft and side $b$ is $13$ ft. Which of the following could be the length of side $c$ if angle $C$ is opposite side $c$ and angle $C$ is the largest angle in the triangle?

Given triangle ABC with sides $a$, $b$, and $c$ opposite angles $A$, $B$, and $C$ respectively, which expression represents the approximate length of side $a$ using the Law of Sines?

Triangle $ABC$ has vertices $A$, $B$, and $C$. Under which transformation(s) will the length $AB$ remain equal to $A\text{'}B\text{'}$ after the transformation?

Given that $m\angle \mathrm{efg}=27°$ and $m\angle \mathrm{gfh}=65°$, what is $m\angle \mathrm{efh}$ in triangle $efg$?

Which composition of transformations will create a pair of similar, but not congruent, triangles?