Question

how to construct an equilateral triangle of diagonal 5.5 cm ?

Answer 1

draw a line segment of 5.5 cm and name it AB.
Now , point the compass on A and open it to B.
Draw the arc.
Now, repeat the same step with point B.
there will be a point where arc of A and B will meet.
name the point X.
Now, join AX & BX