Make a program for finding the area, perimeter and diagonal in a square with side A.
| November 28, 2020 | education
program geometry;
var a, p, s: integer;
d: real;
begin
read (a);
s: = a * a;
p: = a * 4;
d: = sqrt (a * a + a * a);
writeln (‘Square area =’, s);
writeln (‘Perimeter of the square =’, p);
writeln (‘Diagonal of the square =’, d);
end.
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