Chapter 8 Comparing Quantities Exercise 8.1

Chapter 8 Comparing Quantities Exercise 8.1 Question 1. Find the ratio of: (a) ₹ 5 to 50 paise (b) 15 kg to 210 g (c) 9 m to 27 cm (d) 30 days to 36 hours Solution: (a) ₹ 5 to 50 paise Converting the given quantities into same units, we have ₹ 5 = 5 × 100 = 500 paise...

Chapter 7 Congruence of Triangles

Chapter 7 Congruence of Triangles Very Short Answer Type Question 1. In the given figure, name (a) the side opposite to vertex A (b) the vertex opposite A to side AB (c) the angle opposite to side AC (d) the angle made by the sides CB and CA. Solution: (a) The side...

Chapter 7 Congruence of Triangles Exercise 7.2

Chapter 7 Congruence of Triangles Exercise 7.2 Question 1. Which congruence criterion do you use in the following? (a) Given: AC = DF AB = DE BC = EF So, ∆ABC = ∆DEF (b) Given: ZX = RP RQ = ZY ∠PRQ = ∠XZY So, ∆PQR ≅ ∆XYZ (c) Given: ∠MLN = ∠FGH ∠NML = ∠GFH ML = FG So,...

Chapter 7 Congruence of Triangles Exercise 7.1

Chapter 7 Congruence of Triangles Exercise 7.1 Question 1. Complete the following statements: (a) Two line segments are congruent if _______ . (b) Among the congruent angles, one has a measure of 70°, the measure of the other angle is _______ . (c) When we write...

Chapter 6 The Triangles and its Properties

Chapter 6 The Triangles and its Properties Very Short Answer Type Question 1. In ∆ABC, write the following: (a) Angle opposite to side BC. (b) The side opposite to ∠ABC. (c) Vertex opposite to side AC. Solution: (a) In ∆ABC, Angle opposite to BC is ∠BAC (b) Side...
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