Chapter 5 Operations on Rational Numbers Set 5.1
Chapter 5 Operations on Rational Numbers Set 5.1 Question 1. Carry out the following additions of rational numbers: ii. 12/3 +24/5 iii. 11/17 + 13/19 iv. 23/11 + 13/77 Question…
Chapter 4 Angles and Pairs of Angles Set 4.7
Chapter 4 Angles and Pairs of Angles Set 4.7 Question 1. ∠ACD is an exterior angle of ∆ABC. The measures of ∠A and ∠B are equal. If m∠ACD = 140°,…
Chapter 4 Angles and Pairs of Angles Set 4.6
Chapter 4 Angles and Pairs of Angles Set 4.6 Question 1. Lines AC and BD intersect at point P. m∠APD = 47° Find the measures of ∠APB, ∠BPC, ∠CPD. Solution:…
Chapter 4 Angles and Pairs of Angles Set 4.5
Chapter 4 Angles and Pairs of Angles Set 4.5 Question 1. Draw the pairs of angles as described below. If that is not possible, say why. i. Complementary angles that…
Chapter 4 Angles and Pairs of Angles Set 4.4
Chapter 4 Angles and Pairs of Angles Set 4.4 Question 1. Name the pairs of opposite rays in the figure alongside. Solution: Ray PL and ray PM Ray PN and…
Chapter 4 Angles and Pairs of Angles Set 4.3
Chapter 4 Angles and Pairs of Angles Set 4.3 Question 1. Write the measures of the supplements of the angles given below: i. 15° ii. 85° iii. 120° iv. 37°…
Chapter 4 Angles and Pairs of Angles Set 4.2
Chapter 4 Angles and Pairs of Angles Set 4.2 Question 1. The measures of some angles are given below. Write the measures of their complementary angles. i. 40° ii. 63°…
Chapter 4 Angles and Pairs of Angles Set 4.1
Chapter 4 Angles and Pairs of Angles Set 4.1 Question 1. Observe the figure and complete the table for ∠AWB. Points in the interior Points in the exterior Points on…
Chapter 3 HCF and LCM Set 3.5
Chapter 3 HCF and LCM Set 3.5 Question 1. Choose the right option. i. The HCF of 120 and 150 is __ (A) 30 (B) 45 (C) 20 (D) 120…
Chapter 3 HCF and LCM Set 3.4
Chapter 3 HCF and LCM Set 3.4 Question 1. Find the LCM: i. 12, 15 ii. 6, 8, 10 iii. 18, 32 iv. 10, 15, 20 v. 45, 86 vi.…