JAC Class 10 Maths Solutions Chapter 6 Triangles Ex 6.1

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Jharkhand Board JAC Class 10 Maths Solutions Chapter 6 Triangles Ex 6.1 Textbook Exercise Questions and Answers.

JAC Board Class 10 Maths Solutions Chapter 6 Triangles Exercise 6.1

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

  1. All circles are …………… (congruent, similar)
  2. All squares are ……….. (similar, congruent)
  3. All ……………. triangles are similar. (isosceles, equilateral)
  4. Two polygons of the same of sides are similar, if (a) their corresponding angles are …… and (b) their corresponding sides are ……….. (equal, proportional)

Answer:

  1. similar
  2. similar
  3. equilateral
  4. equal, proportional

JAC Class 10 Maths Solutions Chapter 6 Triangles Ex 6.1

Question 2.
Give two different examples of pair of
1. similar figures.
2. non-similar figures.
Answer:
1. Similar figures: Any two squares are similar. Any two equilateral triangles are similar. Any two circles are similar.
2. Non-similar figures: An equilateral triangle and an obtuse angled triangle are non- similar. An equilateral triangle and a right angled triangle are non-similar.

Question 3.
State whether the following quadrilaterals are similar or not:
Answer:
JAC Class 10 Maths Solutions Chapter 6 Triangles Ex 6.1 - 1
No, because for any correspondence between their vertices, the corresponding sides are proportional but the corresponding angles are not equal.

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