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