**Fill in the blanks by using the correct word given in brackets.**

**(i)** All circles are……………… **(congruent/similar)**

**(ii)** All squares are……………. **(similar/congruent)**

**(iii)** All ……………… triangles are similar. **(isosceles/equilateral)**

**(iv)** Two polygons of the same number of sides are similar, if

**(a)** their corresponding angles are …………… and

**(b)** their corresponding sides are …………… **(equal/proportional)**

**(i)** similar.

**(ii)** similar.

**(iii)** equilateral

**(iv)** equal, proportional