Question

how to construct a rectangle with a compass

Answer 1

draw a line segment then construct 90 degree angles on both end points then cut them at appropriate length join them this is how you will get required rectangle

Answer 2

make a line of any cm. name it a and b . from point a draw a 90 degree angle . and draw a straight line. name it d. from point d take the length of a and b. and draw a arc .name it c.
go to point b and make 90 degree angle and draw a line. it is develop to be a rectangle