Chapter 6: Integers
Integers Ex- 6.1 1. Write opposites of the following: (a) Increase in weight (b) 30 km north (c) 80 m east (d) Loss of Rs 700 (e) 100 m above sea level Solution: We use the concept…
Chapter – 7: Congruence of Triangles
Exercise 7.1 1. Complete the following statements: (a) Two-line segments are congruent if ___________. Solution: – Two line segments are congruent if they have the same length. (b) Among two congruent angles, one has a measure of…
Chapter 10: Mensuration
EXERCISE 10.1 1. Find the perimeter of each of the following figures: Solution: (a) Perimeter = sum of all sides = AB + BC + CD + AD = (4 + 2 + 1 + 5) cm…
Chapter 11: Algebra
EXERCISE 11.1 (a) A pattern of letter T as T (b) A pattern of letter Z as Z (c) A pattern of letter U as U (d) A pattern of letter V as V (e) A pattern…
Chapter 13: Symmetry
EXERCISE 13.1 Solution: Four examples are the blackboard, the table top, a pair of scissors, the computer disc etc. 2. For the given figure, which one is the mirror line, l 1 or l 2 ? Solution:…
Chapter 14: Practical Geometry
EXERCISE 14.1 Solution: Steps to draw the required circle with a radius of 3.2 cm are as follows. Step 1: Measure and open the compass of the given length. Step 2: Mark a Centre ‘O’ as the Centre. As we…
Rational Numbers Around us
What if I tell you that mathematics is all around us? Wouldn’t it be fun to learn mathematics from things that we use, play, and see in our day-to-day life? In this blog, we’re bringing you an…
