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Question 1 of 4
1. Question
2 point(s)
The figure above shows the cross section \(ABCD\) of a small shed.
The straight line \(AB\) is vertical and has length \(2.12m\).
The straight line \(AD\) is horizontal and has length \(1.86m\)
The curve \(BC\) is an arc of a circle with centre \(A\), and \(CD \) is a straight line.
Given that the size of \(\angle BAC \) is \(0.65\) radians,find
(a) The length of the arc \(BC\), in \(m\), to \(2\) decimal parts.
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arc \(BC=\) \(m\)
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Question 2 of 4
2. Question
2 point(s)(b) The area of the sector \(BAC\), in \(m^{2}\), to \(2\) decimal places,
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Area of \(BAC=\) \(m^2 \)
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Question 3 of 4
3. Question
2 point(s)(c) The size of \(\angle CAD \), in radians, to \(2\) decimal places,
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\(\angle CAD=\) radians
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Question 4 of 4
4. Question
3 point(s)(d) The area of the cross section \(ABCD \) of the shed in \(m^{2}\), to \(2\) decimal places.
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area of the cross section \(ABCD=\) \(m^2 \)
CorrectIncorrect -
