These NCERT Solutions for Class 10 Maths Chapter 6 Triangles Ex 6.1 Questions and Answers are prepared by our highly skilled subject experts.

## NCERT Solutions for Class 10 Maths Chapter 6 Triangles Exercise 6.1

Question 1.

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)

Solution:

(i) All circles are similar.

(ii) All squares are similar.

(iii) All equilateral triangles are similar.

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

(a) their corresponding angles are equal and

(b) their corresponding sides are proportional.

Question 2.

Give two different examples of pair of

(i) similar figures.

(ii) non-similar figures.

Solution:

(i) similar figures:

Both circles have equal radii so they are similar.

Both squares have equal sides so they are similar.

(ii) non-similar figures

They are not similar.

Question 3.

State whether the following quadrilaterals are similar or not.

Solution:

They are not similar because both figures have different sides.