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A sector of a circle, lets say AOB with circle centre O and radius 5cm has a chord subtended from A to B. This chord forms a triangle with centre 0. Angle 0 isθradians, and the area of triangle A0B is 8cm^{2}. Given that angle AOB is obtuse, findθ.
I worked out Sin^{1}(0.64)= 0.694, but this is not an obtuse angle and I dont know how to finish the problem any help would be greatly appreciated!!
Thank you!
I worked out Sin^{1}(0.64)= 0.694, but this is not an obtuse angle and I dont know how to finish the problem any help would be greatly appreciated!!
Thank you!
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