Chapter 6 of Class 10 NCERT maths book is Triangles. Different properties of a triangle are explained in this chapter. There are 6 exercises in this chapter & about 9 theorems.

NCERT Solutions for Class 10 Maths Chapter 6 by **Swiflearn** are by far the best and most reliable NCERT Solutions that you can find on the internet. These NCERT Solutions for Class 10 Maths Chapter 6 are designed as per the CBSE Class 10th Maths Syllabus. These NCERT Solutions will surely make your learning convenient & fun. Students can also Download FREE PDF of **NCERT Solutions** Class 10 Chapter 6.

## NCERT Solutions for Class 10 Maths Chapter 6 Triangles : EX 6.1

**Question 1:**

**Fill in the blanks 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.

Size of circles may be different, but shape will be always same.

(ii) All squares are similar.

Size of squares may be different, but shape will be always same.

(iii) All equilateral triangles are similar because of their same shape.

(iv) Two polygons of 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)

Two equilateral triangles with sides 1cm and 2cm

Two squares with sides 1cm and 2cm.

(ii)

Trapezium and Square

Triangle and Parallelogram

**Question 3.**

**State whether the following quadrilaterals are similar or not:**

**Solution**:

Corresponding sides of two quadrilaterals are proportional i. e. 1: 2 but their corresponding angles are not equal. Hence, quadrilateral PQRS and ABCD are not similar.

## NCERT Solutions for Class 10 Maths Chapter 6 Triangles : EX 6.2