Chapter 12 Exponents and Powers Exercise 12.1 Question 1. Evaluate: Solution: Question 2. Simplify and express the result in power notation with a positive exponent. Solution: Question 3. Find the value of Solution: Question 4. Solution: Question 5. Find the value of...
Chapter 11 Mensuration Very Short Answer Type Question 1. Find the perimeter of the following figures: So, the circle will have a larger area. Question 4. The length and breadth of a rectangle are in the ratio 4 : 3. If its perimeter is 154 cm, find its length and...
Chapter 11 Mensuration Exercise 11.4 Question 1. Given a cylindrical tank, in which situation will you find the surface area and in which situation volume. (a) To find how much it can hold. (b) Number of cement bags required to plaster it. (c) To find the number of...
Chapter 11 Mensuration Exercise 11.3 Question 1. There are two cuboidal boxes as shown in the figure. Which box requires the lesser amount of material to make? Solution: (a) Volume of the cuboid = l × b × h = 60 × 40 × 50 = 120000 cm3 (b) Volume of cube =...
