2023 AMC 12A Problem 11

What is the degree measure of the acute angle formed by lines with slopes $2$ and $\tfrac{1}{3}$ ?

$\textbf{(A)}~30\qquad\textbf{(B)}~37.5\qquad\textbf{(C)}~45\qquad\textbf{(D)}~52.5\qquad\textbf{(E)}~60$

Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.