# Give two examples of:(i) Congruent figures.(ii) Similar figures which are not congruent.(iii) Non-similar figures.

(i) (a) Two circles having radii 2cm and different centres In this, both of them have the same radii, but their centres are different.

(b) Two squares having the same length of side 5cm We know that in a square all the sides are equal and all angles are of 90°. So, these two squares are congruent.

(ii) (a) Two equilateral triangles having sides 1cm and 2cm. In case of equilateral triangles, all the sides are equal, and all the angles are of 60°.

But here, their corresponding angles are equal, but sides of triangle ABC and PQR are not equal in length.

So, they are similar figures but not congruent.

(b) Two circles having radii 1cm and 2cm Both of the figures are of circle but they are having different radii. So, they are similar but not congruent.

(iii) (a) A rhombus and a rectangle

In the case of a rhombus, all the sides are equal, and the angles can either be right angles or combination of acute and obtuse angles but in rectangle all angles are equal, and opposite sides are equal.

Hence, a rhombus and a rectangle are non-similar figures.

(b) Here, both of the triangles are right-angled but other two angles are not equal. So, these are not similar figures.

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