function perimN($p, $n)
{
$x = [];
$x[1] = Leng2($p['a'], $p['b']);
$x[2] = Leng2($p['c'], $p['b']);
$x[3] = Leng2($p['c'], $p['d']);
$x[4] = Leng2($p['d'], $p['e']);
$x[5] = Leng2($p['e'], $p['f']);
$x[6] = Leng2($p['a'], $p['f']);
$sum = 0;
foreach ($x as $elem) {
$sum += $elem;
}
return $sum;
}
<?php /** * Using the TPoint and TTriangle types and the Dist function (see Param64, Param65, Param67), write a procedure Alts * (T, h1, h2, h3) that evaluates the altitudes h1, h2, h3 drawn from the vertices T.A, T.B, T.C of a triangle T (T is * an input parameter of TTriangle type, h1, h2, h3 are output real-valued parameters). Using this procedure, evaluate * the altitudes of each of triangles ABC, ABD, ACD provided that the coordinates of points A, B, C, D are given. */ echo '<div style="display: none;">'; // include 'helper.php'; include '67.php'; require_once '66.php'; require_once '64.php'; echo '</div >'; use TPoint\TPoint; use ParamPhpJavaScrit\TTriangle\TTriangle; $t1 = new TTriangle(2, 6, 7, 1, 2, 1); $s = Area($t1); $a = new TPoint($t1->getAx(), $t1->getAy()); $b = new TPoint($t1->getBx(), $t1->getBy()); $c = new TPoint($t1->getCx(), $t1->getCy()); $length1 = Leng2($a, $b); $length2 = Leng2($a, $c); $length3 = Leng2($b, $c); echo Dist($s, $length1) . '<br/>'; echo Dist($s, $length2) . '<br/>'; echo Dist($s, $length3) . '<br/>';
* Using the TPoint and TTriangle types and the Leng and Area functions (see Param64–Param66), write a real-valued
* function Dist(P, A, B) that returns the distance D(P, AB) between a point P and a line AB:
* D(P, AB) = 2·SPAB/|AB|,
* where SPAB is the area of the triangle PAB (parameters P, A, B are input parameters of TPoint type). Using this
* function, find the distance between a point P and each of lines AB, AC, BC provided that the coordinates of
* points P, A, B, C are given.
*/
echo '<div style="display: none;">';
include 'helper.php';
//include '66.php';
require_once '66.php';
require_once '64.php';
echo '</div >';
use TPoint\TPoint;
use ParamPhpJavaScrit\TTriangle\TTriangle;
function Dist($S, $A)
{
return 2 * $S / $A;
}
function Leng2($a, $b)
{
$length = pow($a->getX() - $b->getX(), 2) + pow($a->getY() - $b->getY(), 2);
$len = sqrt($length);
return $len;
}
$t1 = new TTriangle(2, 6, 7, 1, 2, 1);
$s = Area($t1);
$a = new TPoint($t1->getAx(), $t1->getAy());
$b = new TPoint($t1->getBx(), $t1->getBy());
$length = Leng2($a, $b);
echo Dist($s, $length);
