A-LevelMathematicsCircular measureMay/June 2020Paper 3 Q68 Marks
The diagram shows a circle with centre O and radius r. The tangents to the circle at the points A and B meet at T, and angle AOB is 2x radians. The shaded region is bounded by the tangents AT and BT, and by the minor arc AB. The area of the shaded region is equal to the area of the circle. [Figure 6.1]
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