Chapter 14 Algebraic Formulae – Expansion of Squares Set 14.3
Chapter 14 Algebraic Formulae – Expansion of Squares Set 14.3 Question 1. Factorise the following expressions and write them in the product form. i. 201a³b² ii. 91xyt² iii. 24a²b² iv.…
Chapter 14 Algebraic Formulae – Expansion of Squares Set 14.2
Chapter 14 Algebraic Formulae – Expansion of Squares Set 14.2 Question 1. Use the formula to multiply the following: i. (x + y)(x – y) ii. (3x – 5)(3x +…
Chapter 14 Algebraic Formulae – Expansion of Squares Set 14.1
Chapter 14 Algebraic Formulae – Expansion of Squares Set 14.1 Question 1. Expand: Solution: i. (5a + 6b)² Here, A = 5a and B = 6b (5a + 6b)² =…
Chapter 13 Pythagoras Theorem Set 13.2
Chapter 13 Pythagoras Theorem Set 13.2 Question 1. Find the Pythagorean triplets from among the following sets of numbers: i. 3,4,5 ii. 2,4,5 iii. 4,5,6 iv. 2,6,7 v. 9,40,41 vi.…
Chapter 13 Pythagoras Theorem Set 13.1
Chapter 13 Pythagoras Theorem Set 13.1 Question 1. In the figures below, find the value of ‘x’. Solution: i. In ∆LMN, ∠M = 90°. Hence, side LN is the hypotenuse.…
Chapter 12 Perimeter and Area Set 12.4
Chapter 12 Perimeter and Area Set 12.4 Question 1. Find the total surface area of cubes having the following sides: i. 3 cm ii. 5 cm iii. 7.2 m iv.…
Chapter 12 Perimeter and Area Set 12.3
Chapter 12 Perimeter and Area Set 12.3 Question 1. A page of a calendar is 45 cm long and 26 cm wide. What is its area? Solution: Area of page…
Chapter 12 Perimeter and Area Set 12.2
Chapter 12 Perimeter and Area Set 12.2 Question 1. If the side of a square is 12 cm, find its area. Solution: Area of a square = (side)² = (12)²…
Chapter 12 Perimeter and Area Set 12.1
Chapter 12 Perimeter and Area Set 12.1 Question 1. If the length and breadth of a rectangle are doubled, how many times the perimeter of the old rectangle will that…
Chapter 11 Circle Set 11.2
Chapter 11 Circle Set 11.2 Question 1. Choose the correct option. If arc AXB and arc AYB are corresponding arcs and m(arc AXB) = 120° then m(arc AYB) = (A)…