Random.onUnitCircle

Description

Returns a random point on the circumference of a circle with radius 1.0 (Read Only).

using UnityEngine;

public class Example : MonoBehaviour
{
    void Start()
    {
        // Sets the Rigidbody2D velocity to 10 and in a random 2D direction.

        GetComponent<Rigidbody2D>().linearVelocity = Random.onUnitCircle * 10;
    }
}