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Math·Geometry and Trigonometry·Lines, angles, and triangles

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In triangle $ABC$, the measure of angle $A$ is $53^{\circ }$, the measure of angle $B$ is $90^{\circ }$, and the measure of angle $C$ is ${\left(\frac{k}{2}\right)}^{\circ }$. What is the value of $k$?

A

37

B

45

C

74

D

106