In this lesson, we will learn how to find the arc length and the perimeter of a circular sector using radians and solve problems including real-life situations.
Students will be able to
Q1:
An arc has a measure of 2𝜋3 radians and a radius of 9. Work out the length of the arc, giving your answer in terms of 𝜋, in its simplest form.
Q2:
The diagram shows a sector of a circle of radius √15 cm and central angle √3 rad.
Find the length of the arc of the sector, giving your answer exactly.
Q3:
Find the length of the arc of a circle of radius 3.1 cm that subtends an angle of 1.1 rad.
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