Class10 NCRT Triangles Exercise – 6.1 pdf || UP Board

Exercise – 6.1


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

(i) All circles are  similar  . (congruent, similar)

(ii) All squares are  similar  . (congruent, similar)

(iii) All  equilateral  triangle are similar. (isosceles, equilateral)

(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  . (equal, proportional)


2. Give two different examples of pair of:

(i) similar figures

 Two circles of radius 1 cm and 2 cm.

Two squares having 1 cm and 2 cm.

(ii) non-similar figures.

Trapezoid and Parallelogram


triangle and square

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

Quadrilaterals PQRS and ABCD are not similar, because their sides are proportional, i.e. 1:2, but their corresponding angles are not equal.  

Download Class10 NCRT Triangles  Exercise – 6.1 pdf