INI YA RIN

        Scanner input = new Scanner(System.in);
        double al, h, s, lt, ls;

        System.out.print("Panjang Alas :");
        al = input.nextDouble();

        System.out.print("Tinggi :");
        h = input.nextDouble();

        System.out.print("Sudut Alas :");
        s = input.nextDouble();

        lt = 0.5 * h * (al + (al - (2 * h * Math.tan(s)))); // LUAS TRAPSESIUM
        ls = 0.5* h * al; // LUAS SEGITIGA

        System.out.println("Luas Trapesium : "+ lt);
        System.out.println("Luas Segitiga : "+ ls);