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class Lingkaran { var $jariJari; function __construct($jariJari) {

class Lingkaran { var $jariJari; function __construct($jariJari) { $this->jariJari = $jariJari; } function hitungLuas() { return M_PI *$this->jariJari*$this->jariJari; } function hitungKeliling() { return 2*M_PI*$this->jariJari; } }. class Lingkaran {

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class Lingkaran { var $jariJari; function __construct($jariJari) {

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  1. class Lingkaran { var $jariJari; function __construct($jariJari) { $this->jariJari = $jariJari; } function hitungLuas() { return M_PI*$this->jariJari*$this->jariJari; } function hitungKeliling() { return 2*M_PI*$this->jariJari; } } class Lingkaran { private $jariJari; private $luas; private $keliling; privatefunction hitung() { $this->luas = M_PI*$this->jariJari*$this->jariJari; $this->keliling = 2*M_PI*$this->jariJari; } publicfunction __construct($jariJari) { $this->jariJari = $jariJari; $this->hitung(); } publicfunction getJariJari() { return $this->jariJari; } publicfunction setJariJari($jariJari) { $this->jariJari = $jariJari; $this->hitung(); } publicfunction getLuas() { return $this->luas; } publicfunction getKeliling() { return $this->keliling; } }

  2. class Segitiga { var $alas; var $tinggi; function __construct($alas, $tinggi) { $this->alas = $alas; $this->tinggi = $tinggi; } function hitungLuas() { return 0.5*$this->alas*$this->tinggi; } } class Segitiga { private $alas; private $tinggi; private $luas; privatefunction hitung() { $this->luas = 0.5*$this->alas*$this->tinggi; } publicfunction __construct($alas, $tinggi) { $this->alas = $alas; $this->tinggi = $tinggi; $this->hitung(); } publicfunction getAlas() { return $this->alas; } publicfunction setAlas($alas) { $this->alas = $alas; $this->hitung(); } publicfunction getTinggi() { return $this->tinggi; } publicfunction setTinggi($tinggi) { $this->tinggi = $tinggi; $this->hitung(); } publicfunction getLuas() { return $this->luas; } }

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