A sector with an area of \goldE{54\pi\,\text{cm}^2}54πcm 2 start color #a75a05, 54, pi, start text, c, m, end text, squared, end color #a75a05 has a radius of \maroonD{9\,\text{cm}}9cmstart color #ca337c, 9, start text, c, m, end text, end color #ca337c. What is the central angle measure of the sector in radians? Choose 1 Choose 1 (Choice A) A \dfrac{2}{3} 3 2 ​ start fraction, 2, divided by, 3, end fraction (Choice B) B \dfrac{4}{3} 3 4 ​ start fraction, 4, divided by, 3, end fraction (Choice C, Checked) C \dfrac{2\pi}{3} 3 2π ​ start fraction, 2, pi, divided by, 3, end fraction (Choice D) D \dfrac{4\pi}{3} 3 4π ​