Visualizing an Object's Front Arc Line of Sight

Hello,
I’m trying to draw an object’s front arc line of sight for debugging purposes.
I’m using the following code.

void Update () 
	{
		
		Vector3 losRight = transform.TransformDirection(Quaternion.Euler(0, 45, 0) * transform.forward)*5;
		Vector3 losLeft = transform.TransformDirection(Quaternion.Euler(0, -45, 0) * transform.forward)*5;
		Debug.DrawRay(transform.position, losRight, Color.green);
		Debug.DrawRay(transform.position, losLeft, Color.green);
	
	}

I’m getting the correct result, pictured below, until the object rotates, at which point the rays begin to skew.

1286048--58481--$Capture.JPG

Any Idea how I can keep this front arc visual consistent?

I was also trying to implement the Handles.DrawSolidArc I found here, but with no luck. I know even less about javascript than I do about C# (fledgling programmer).
Any help would be greatly appreciated.
Thank You!

void Update()
{
    float distance = 5f;
    Debug.DrawRay(transform.position, (transform.forward + transform.right) * distance, Color.green);
    Debug.DrawRay(transform.position, (transform.forward - transform.right) * distance, Color.green);
}

Here is an example using the Handles.DrawSolidArc in C#. First you must make a folder called ‘Editor’ and place the following script in it:

using UnityEngine;
using UnityEditor;

[CustomEditor(typeof(SolidArcExample))]
public class DrawSolidArc : Editor
{

    void OnSceneGUI()
    {
        SolidArcExample myTarget = (SolidArcExample)target;

        Handles.color = new Color(1f, 1f, 1f, 0.2f);

        Handles.DrawSolidArc(myTarget.transform.position,
            myTarget.transform.up,
            -myTarget.transform.right,
            180,
            myTarget.shieldArea);

        Handles.color = Color.white;

        myTarget.shieldArea = Handles.ScaleValueHandle(myTarget.shieldArea,
            myTarget.transform.position + myTarget.transform.forward * myTarget.shieldArea,
            myTarget.transform.rotation,
            1f,
            Handles.ConeCap,
            1f);
    }
}

You must then make the following script and place it as a component on the object that you want to have the arc.

using UnityEngine;

public class SolidArcExample : MonoBehaviour
{

    public float shieldArea = 5f;
}