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Copy pathLuasKelilingLingkaran.pas
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LuasKelilingLingkaran.pas
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program ProgramHitungLuasdanKelilingLingkaran;
uses
crt;
procedure HitungLuasKelilingLingkaran();
const
PHI: Real = 3.14;
var
mode: Integer;
luas, keliling, r: Real;
function getJariJari() : Real;
begin
writeln();
write('Masukkan jari-jari >> ');
read(r);
getJariJari := r;
end;
function LuasLingkaran(r: Real) : Real;
begin
LuasLingkaran := PHI * (r * r);
end;
function KelilingLingkaran(r: Real) : Real;
begin
KelilingLingkaran := PHI * 2 * r;
end;
begin
writeln('Silakan Pilih Opsi Dibawah !!');
writeln('[1] Hitung Luas Lingkaran');
writeln('[2] Hitung Keliling Lingkaran');
writeln('[3] Keluar');
write('>> '); read(mode);
case (mode) of
1:
begin
luas := LuasLingkaran(getJariJari());
writeln();
writeln('Luas Lingkaran : ', trunc(luas));
end;
2:
begin
keliling := KelilingLingkaran(getJariJari());
writeln();
writeln('Keliling Lingkaran : ', trunc(keliling));
end;
3: exit;
end;
end;
begin
// Panggil program procedure nya
HitungLuasKelilingLingkaran();
end.