2012 Jan C2 Q7
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Question 1 of 5
1. Question
2 point(s)Figure \(2 \) shows \(ABC\), sector of circle of radius \(6cm\) with centre \(A \). Given that the size of angle \(\angle BAC\) is \(0.95\) radians, find
(a) The length of the arc \(BC \),
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length of arc \(BC =\) \(cm\)
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Question 2 of 5
2. Question
2 point(s)(b) The area of the sector \(ABC \),
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Area of Sector\(ABC =\) \(cm^2\)
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Question 3 of 5
3. Question
2 point(s)Find point \(D \) lies on the line \(AC \) and is such that \(AB=BD \). The region \(R \), shown shaded in Figure 2, is bounded by the lines \(CD, DB \) and the arc \(BC\).
(c) Show that the length of \(AD \) is \(5.16cm\) to \(3\) significant figures.Were you able to show this?
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Question 4 of 5
4. Question
2 point(s)Find
(d) The perimeter of \(R \).
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\(P_R =\) \(cm\)
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Question 5 of 5
5. Question
4 point(s)(e) The area of \(R \) giving your answer to \(2\) significant figure.
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\(A_R =\) \(cm^2\)
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