NCERT Solutions Class 10th Maths Chapter – 6 Triangles Exercise – 6.1

1. Fill in the blanks using correct word given in the brackets:-

(i) All circles are __________. (congruent, similar)
Solution: Similar

(ii) All squares are __________. (similar, congruent)
Solution: Similar

(iii) All __________ triangles are similar. (isosceles, equilateral)
Solution: 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)
Solution: (a) Equal
(b) Proportional

2. Give two different examples of pair of
(i) Similar figures

Solution: Example of two Similar Figure.(ii) Non-similar figuresSolution: Example of two Non-Similar Figure.

3. State whether the following quadrilaterals are similar or not:

Solution: From the given two figures, we can see their corresponding angles are different or unequal. Therefore they are not similar.