NCERT solution class 10 chapter 6 Triangles exercise 6.1 mathematics

EXERCISE 6.1

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Triangles Introduction, NCERT Mathematics Class 10th

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Theorem 6.1 "Triangles" Chapter 6 - NCERT Maths Class 10th

Theorem 6.8 "Triangles" Chapter 6 - NCERT Maths Class 10th

Theorem 6.9 "Triangles" Chapter 6 - NCERT Maths Class 10th

Page No 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)

Answer:

(i) Similar
(ii) Similar
(iii) Equilateral
(iv) (a) Equal
(b) Proportional

Video Solution

Question 2:

Give two different examples of pair of
(i) Similar figures
(ii)Non-similar figures

Answer:

(i) Two equilateral triangles with sides 1 cm and 2 cm

Two squares with sides 1 cm and 2 cm

(ii) Trapezium and square

Triangle and parallelogram

Video Solution

Question 3:

State whether the following quadrilaterals are similar or not:

Answer:

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

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