Question

construct a square ABCD with AB=4.5
​

Answer 1

Steps:

Draw a line segment AB = 4.5cm.Draw AP ⊥ AB.From AP cut off AD = 4.5cm.With B as a center and radius 4.5 cm draw an arc.With D as center and radius 4.5 cm draw another arc cutting the former arc at C.Join BC and CD.