From the radius and central angle, calculate the area of ​​the bow, the length of the arc, and the length of the chord using mathematical formulas.

Calculate the area, the length of arc, and the length of chord of segment from the radius and the central angle using the formula.

When radius r and central angle θ is input and "Calculate area of segment" button is clicked, the area, the length of arc, and the length of chord of the segment are calculated and displayed.