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 of a circle has a length of 2.7 cm and it subtends an angle of 0.3 rad. Find the radius of the circle.

Q2:

An arc of a circle of radius π cm subtends an angle of π rad. Given that the perimeter of this sector is π cm, find an expression for π in terms of π and π.

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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