The radian measure of the central angle is π/3 radian
<h3>Further explanation</h3>
The basic formula that need to be recalled is:
Circular Area = π x R²
Circle Circumference = 2 x π x R
where:
<em>R = radius of circle</em>

The area of sector:

The length of arc:

Let us now tackle the problem!

This problem is about finding the central angle of circle.







<h2>Conclusion:</h2>
The radian measure of the central angle is π/3 radian

<h3>Learn more</h3>
<h3>Answer details</h3>
Grade: College
Subject: Mathematics
Chapter: Trigonometry
Keywords: Sine , Cosine , Tangent , Opposite , Adjacent , Hypotenuse, Circle , Arc , Sector , Area, Central Angle , Angle