<h2>π/4 radians = 45°</h2>
<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 conversion unit of angles
<em>Remember that :</em>

Another Example:




<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 , Radian , Degree , Unit , Conversion