# Triangles - CBSE Class 10 NCERT Maths Solutions of Exercise 6.1

## Solutions of CBSE Class X NCERT Mathematics

### Chapter 6, triangles

#### CBSE Class 10, NCERT Mathematics Solutions of Exercise 6.1

(Ncert Math Textbook Page 122)
Question 1:
Fill in the blanks using correct word given in the 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)
Solution: (i) Similar (ii) Similar (iii) Equilateral (iv) (a) Equal (b) Proportional

Question 2: Give two different examples of pair of
(i) Similar figures (ii) Non-similar figures
(Do it yourself)

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

Solution: Quadrilaterals PQRS and ABCD are not similar. The length of their corresponding sides are proportional in the ratio 1:2, but their corresponding angles are not equal.