Write a script file to draw a unit circle

circle (radius): This function draws a circle of the given radius by taking the “turtle” position as the center. A tangent is a line that touches the circumference of a circle from outside at a point, provided that any extension of the line will not cause intersection with the circle.

circle (radius): This function draws a circle of the given radius by taking the “turtle” position as the center. A tangent is a line that touches the circumference of a circle from outside at a point, provided that any extension of the line will not cause intersection with the circle. Now, think about a group of circles, that have a common tangent.

Some the commonly used methods are: forward (x): moves the pen in the forward direction by x unit. backward (x): moves the pen in the backward direction by x unit. right (x): rotate the pen in the clockwise direction by an angle x. left (x): rotate the pen in the anticlockwise direction by an angle x. penup (): stop drawing of the turtle pen.

JavaScript Code: function draw() { var canvas = document.getElementById('circle'); if (canvas.getContext) { var ctx = canvas.getContext('2d'); var X = canvas.width / 2; var Y = canvas.height / 2; var R = 45; ctx.beginPath(); ctx.arc(X, Y, R, 0, 2 * Math.PI, false); ctx.lineWidth = 3; ctx.strokeStyle = '#FF0000'; ctx.stroke(); } }