Question

draw aline segment CD=6.3 3cm.mark a point E on it.Draw aline segment EF perpendicular toCD using set square

Answer 1

take a line CD of 6.33cm using scale and then make the point E on the line CD then take set square and scale keep the scale on line CD and take set square and move the set square up until 6.33cm and make a point F and draw the line