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Rafael Tavares Juliani committed 2025-09-04 16:07:07 -03:00
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<!DOCTYPE html>
<html lang="pt-br">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Figura 1.1: Triângulo retângulo</title>
<script type="text/javascript" charset="UTF-8"
src="../scripts/jsxgraph/jsxgraphcore.js"></script>
<link rel="stylesheet" type="text/css" href="../scripts/jsxgraph/jsxgraph.css" />
<link rel="preconnect" href="https://fonts.gstatic.com">
<script async src="https://www.googletagmanager.com/gtag/js?id=G-G6VT93GC1X"></script>
<script type="text/javascript" >
var head = document.getElementsByTagName('head')[0];
var js = document.createElement("script");
js.type = "text/javascript";
if ( window.location !== window.parent.location ) {
//carregado em um iframe
var url = window.top.location.href;
if (url){
var arr = url.split('/');
var dominio = arr[2];
if (dominio == "www.livro.online" || dominio == "livro.online"){
console.log('Iframe carregado no domínio de origem');
} else {
js.innerHTML = `
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'G-G6VT93GC1X');
`
}
} else {
js.innerHTML = `
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'G-G6VT93GC1X');
`
}
} else {
//não foi carregado em um iframe
js.innerHTML = `
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'G-G6VT93GC1X');
`
}
head.appendChild(js);
</script>
<style>
@media(max-width:768px){
.wide {display:none;}
.mobilefont {font-size:0.8em;}
}
@media(min-width:768px){
.tight {display:none;}
}
html {
overflow: hidden;
max-width: 2000px;
}
.jxgbox {
border-color: #85b8ec96;
}
.wrap600 {
break-inside: avoid-column;
overflow: hidden;
}
#jxgbox {
height:0;
width: 99%;
padding-bottom: 40%;
}
.trigonometria_legenda {
font-family: gfs_artemisia;
margin: 12px auto 20px auto;
max-width: 450px;
text-align: center;
}
span.centro {
display: block;
text-align: center;
margin: 10px 0px
}
.trigonometria_legenda p {
text-align: justify;
font-size: 12px !important;
margin-top: 7px !important;
margin-bottom: 7px !important;
}
@font-face {
font-family: 'gfs_artemisia';
src: url('../gfs_artemisia/GFSArtemisia.otf') format('opentype'),
url('../gfs_artemisia/GFSArtemisia.ttf') format('trutype');
}
body{
margin: 0;
padding: 0;
}
h1 {
font-size: 28pt;
text-align: left;
margin-bottom: 43px;
}
h2 {
font-size: 14pt;
text-align: left;
margin-top: 30px;
}
</style>
</head>
<body>
<div class="wrap600 ">
<div id="jxgbox" class="jxgbox" ></div>
</div>
<div class="trigonometria_legenda">
<span><strong>Figura 1.1</strong>: Triângulo Retângulo.</span>
<p>*Arraste os pontos O e A para verificar os valores de seno, cosseno e tangente. Atenção, os valores não são precisos, pois não é uma calculadora.</p>
</div>
<script type="text/javascript">
JXG.Options.renderer = 'canvas';
JXG.Options.text.cssDefaultStyle = 'fontFamily:arial';
JXG.Options.text.display = 'internal';
var board = JXG.JSXGraph.initBoard('jxgbox', {showCopyright: false, boundingbox: [-0.5, 3.5, 6.5, -1]});
var o = board.create('point',[0,0], {name:"O", size:"1", label:{autoPosition: true, offset:[-15, -15]}});
var a = board.create('point',[3.5,3], {name:"A", size:"1",});
var p = board.create('point',["X(A)","Y(O)"], {name:"P", size:"1", label:{autoPosition: true, offset:[10, -15]}});
var alpha = board.create('angle', [p, o, a], {fillColor:'#00000000', label:{ visible: false, fontSize:"20px", autoPosition: false, offset:[-2, -17]}});
var alpha_value = board.create('text', [0.7, 0.25, function() {
var an = Math.floor((alpha.Value()* (180/Math.PI) + Number.EPSILON)*10000)/10000;
return "α = "+an+"°";
}], {anchor: alpha, fontSize:"17px", cssDefaultStyle:"fontFamily:gfs_artemisia; fontSize:12px;"});
var senoTxt = board.create('text', [4.2, 2.75, function(){
var seno = Math.floor(((a.Y() - p.Y())/(Math.sqrt(Math.pow(a.Y() - p.Y(),2)+Math.pow(p.X() - o.X(),2)))+ Number.EPSILON)*100000)/100000;
return `sen(α) = ${seno}`;
}], {cssDefaultStyle:"fontFamily:gfs_artemisia; lineHeight: 1.5; fontSize:12px"})
var cosTxt = board.create('text', [4.2, 1.45, function(){
var cosseno = Math.floor(((p.X() - o.X())/(Math.sqrt(Math.pow(a.Y() - p.Y(),2)+Math.pow(p.X() - o.X(),2)))+ Number.EPSILON)*100000)/100000;
return `cos(α) = ${cosseno}`;
}], {cssDefaultStyle:"fontFamily:gfs_artemisia; lineHeight: 1.5; fontSize:12px"})
var tgTxt = board.create('text', [4.2, 0.1, function(){
var tangente = Math.floor((((a.Y() - p.Y())/(p.X() - o.X()))+ Number.EPSILON)*100000)/100000;
return `tg(α) = ${tangente}`;
}], {cssDefaultStyle:"fontFamily:gfs_artemisia; lineHeight: 1.5; fontSize:12px"})
var li1 = board.create('line',[o,p],
{straightFirst:false, straightLast:false, strokeWidth:1});
var li2 = board.create('line',[o,a],
{straightFirst:false, straightLast:false, strokeWidth:1});
var li2 = board.create('line',[p,a],
{straightFirst:false, straightLast:false, strokeWidth:1});
board.on('move', function(){
a.moveTo([a.X(), a.Y()]);
o.moveTo([o.X(), 0]);
if (p.X() <= o.X() || a.Y() <= p.Y() ){
alpha_value.setAttribute({visible:false});
alpha.setAttribute({visible:false});
senoTxt.setAttribute({visible:false});
cosTxt.setAttribute({visible:false});
tgTxt.setAttribute({visible:false});
} else {
alpha_value.setAttribute({visible:true});
alpha.setAttribute({visible:true});
senoTxt.setAttribute({visible:true});
cosTxt.setAttribute({visible:true});
tgTxt.setAttribute({visible:true});
}
});
//Comando para deixar responsivo (OBS.: Só isso não basta, precisa o css também estar configurado)
var resize = function () {
board.resizeContainer(board.containerObj.clientWidth, board.containerObj.clientHeight, true);
board.fullUpdate();
};
window.onresize = resize;
</script>
</body>
</html>