A right trangle geometric shape

						var board = JXG.JSXGraph.initBoard('box1', {
boundingbox: [-10, 10, 10, -10],showNavigation:false, showcopyright: false, axis: false,
});

var Inpt = [30,13 ,90,["A","B","C"],'ASA'];
var tri = board.create('triangle',Inpt,{D:"RT",'line':{withLabel:false,strokeColor:'blue',strokeWidth:2},'angle':{visible:false,strokeColor:'red',strokeWidth:1}});
var a1 = board.create('angle', [tri.A, tri.C, tri.B],{radius:1.5,name:"90°",label:{offset:[-5,-10]}});

var t1 = board.create('text',[-5,-4,'right triangle'],{color:"blue"});