The problem asks us to find the area of the minor segment of a circle. We are given that the central angle of the segment is $60^\circ$ and the radius of the circle is $22$ cm.
2025/4/26
1. Problem Description
The problem asks us to find the area of the minor segment of a circle. We are given that the central angle of the segment is and the radius of the circle is cm.
2. Solution Steps
The area of the minor segment can be found by subtracting the area of the triangle formed by the radii and the chord from the area of the sector formed by the central angle.
First, we find the area of the sector. The area of a sector is given by the formula:
where is the central angle in degrees and is the radius. In our case, and cm.
Next, we find the area of the triangle. Since the central angle is and the other two sides are equal to the radius, the triangle is an isosceles triangle. Since one angle is , the other two angles must also be , making it an equilateral triangle.
The area of an equilateral triangle with side length is given by:
In our case, cm, so:
Now, we subtract the area of the triangle from the area of the sector to find the area of the minor segment:
Using and :
3. Final Answer
The area of the minor segment is cm, which is approximately cm.
Final Answer: The final answer is