Viết CT Pascal tính Diện tích và ch vi hình chữ nhật

Program Chu_Nhat_Program;

Uses Crt;

Var a,b,s,c: real;

Begin

Clrscr;

Writeln(‘ TINH DIEN TICH & CHU VI HINH CHU NHAT:’);

Write(‘Nhap chieu dai=’); readln(a);

Write(‘Nhap chieu r />s:=a*b;

c:=(a+b)*2;

Writeln(‘Dien tich hinh chu nhat la:’,s:4:2); Writeln(‘Chu vi hinh chu nhat:’,c:4:2); Readln;

End.

Program Chu_Nhat_Program;

Uses Crt;

Var a,b,s,c: real;

Begin

Clrscr;

Writeln(‘ TINH DIEN TICH & CHU VI HINH CHU NHAT:’);

Write(‘Nhap chieu dai=’); readln(a);

Write(‘Nhap chieu rong=’);readln(b);

s:=a*b;

c:=(a+b)*2;

Writeln(‘Dien tich hinh chu nhat la:’,s:6:2); Writeln(‘Chu vi hinh chu nhat:’,c:6:2); Readln;