CSEC Additional Mathematics · 2018 · Paper 1 · Question Q28
Item 28 refers to the following protractor which represents half of a circle. The protractor has a radius of 1.5\text{ metres} and the angle AOB measures 45^\circ.
What is the arc length, x, in metres, along the outer edge of the protractor?
- (A)
\frac{\pi}{4} - (B)
\frac{3\pi}{8} - (C)
\frac{3\pi}{4} - (D)
\frac{\pi}{6}
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