Using ruler and a pair of compass only

Question

a. Construct square ABCD with |AB|=7cm
b. Construct a point Equidistant from |BA| and |BC|
c. Construct a point equidistant from |DA| and |AB|
d. Label the point of intersection of two bisectors as M and draw a circle of radius 0.1metres and M as the centre.
e. Measure angle MAB

Answer 1

so do it
to draw a square draw two lines at right angles first. The rest is easy.
To draw a right angle draw a line, any length from some point x to another point
set your compass at any length greater than half the length x y
swing the compass from x and from y both sides of line x y
The compass arcs hit at points on each side of the line, same distance from x as from y
the line between those arc intersections is the perpendicular bisector
now draw the four sides of equal length.
I think that pretty well settles the rest as well.