Exam-Style Question on Circle
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 74. This question is similar to one that appeared on an IB Standard paper in 2014. The use of a calculator is allowed.
The following diagram shows a circle with centre O and radius 9 cm.
The points A, B and C lie on the circumference of the circle, and AÔC = 1.2 radians.
(a) Find the length of the arc ABC.
(b) Find the perimeter of the minor sector OAC.
(c) Find the area of the minor sector OAC.
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