Question

Opposite angles of quadrilateral are equal. If AB = 4 cm find CD

Answer 1

opposite angles are equal so it may be square,rectangle,parallelogram, rhombus and in all these opposite sides are equal so CD=4

Answer 2

Since opposite angles are equal therefore ABCD is a parallelogram (any kind)

and we know that opposite sides of parallelogram are equal

∴ CD = AB

CD = 4 cm