WAEC 2022 · Paper 1 · Q7TrigonometryExpress 4π5\dfrac{4\pi}{5}54π radians in degrees.A288∘288^\circ288∘B200∘200^\circ200∘C144∘144^\circ144∘D120∘120^\circ120∘Worked solution (try it first)π\piπ radians is 180∘180^\circ180∘, so replace π\piπ by 180∘180^\circ180∘.4×180∘5=720∘5\dfrac{4 \times 180^\circ}{5} = \dfrac{720^\circ}{5}54×180∘=5720∘=144∘= 144^\circ=144∘, option C.Report a problem with this question