var ANGLE_TWO = ANGLE_ONE + DIFF;
var ANGLE_ONE_R = ANGLE_ONE * PI / 180;
var ANGLE_TWO_R = ANGLE_TWO * PI / 180;
init({
range: [ [-11, 31], [-10, 10] ],
scale: 20
});
path([ [5 * cos( ANGLE_ONE_R ), 5 * sin( ANGLE_ONE_R )], [0, 0], [5 * cos( ANGLE_TWO_R ), 5 * sin( ANGLE_TWO_R )] ]);
arc( [0, 0], 1, ANGLE_ONE, ANGLE_TWO );
graph.protractor = new Protractor( [22, 0], 8 );
Khan.scratchpad.disable();