NCERT Solutions for Class 10 Maths: Chapter 6 Similar triangles Exercise 6.1
Triangles EXERCISE 6.1
In this page we have NCERT Solutions for Class 10 Maths: Chapter 6 Similar triangles for
Exercise 6.1 on page 122. Hope you like them and do not forget to like , social_share
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Concept/Formula Used
Two polygons of the same number of sides are similar, if (i) all the corresponding angles are equal and (ii) all the corresponding
sides are in the same ratio (or proportion).
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) Answer
(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 Answer
(i) Examples of Similar figures would be
(a)Two equilateral triangles of sides 2 cm and 6 cm respectively
(b)Two Square of sides 2 and 6 cm respectively
(ii)Examples of non-Similar figures would be
a) Square and a circle
b) Triangle and square
Question 3.
State whether the following quadrilaterals are similar or not: Answer
We know that two polygons are similar if (i) their corresponding angles are equal and (ii) their corresponding sides are in the same ratio.
Here the given two figures have corresponding sides in the same ratio but the corresponding angles are not equal. So, these figures are not similar
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