RD Sharma Solutions Chapter 4 Triangles Exercise 4.1 Class 10 Maths
Chapter Name  RD Sharma Chapter 4 Triangles 
Book Name  RD Sharma Mathematics for Class 10 
Other Exercises 

Related Study  NCERT Solutions for Class 10 Maths 
Exercise 4.1 Solutions
1. (i) All circles are ..........(congruent , similar).
(ii) All squares are .........(similar, congruent).
(iii) All ....... triangles are similar (isosceles, equilaterals) :
(iv) Two triangles are similar, if their corresponding angles are (proportional, equal)
(v) Two triangles are similar, if their corresponding sides are ......(proportional, equal)
(vi) 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 triangles are similar, if their corresponding angles are equal
(v) Two triangles are similar, if their corresponding sides are proportional
(vi) Two polygons of the same number of sides are similar, if
 their corresponding angles are equal.
 their corresponding sides are proportional.
2. Write the truth value (T/F) of each of the following statements:
(i) Any two similar figures are congruent.
(ii) Any two congruent figures are similar.
(iii) Two polygons are similar, if their corresponding sides are proportional.
(iv) Two polygons are similar if their corresponding angles are proportional.
(v) Two triangles are similar if their corresponding sides are proportional.
(vi) Two triangles are similar if their corresponding angles are proportional.
Solution
(i) False
(ii) True
(iii) False
(iv) False
(v) True
(vi) True