SECTION – D (Long Answers) This section comprises of LA type questions of 5 marks each Q32. Prove that a line drawn parallel to one side of a triangle intersecting other two sides in distinct points, divides the other …
Chapter 9- Mensuration Ex 9.2 Keeping the examination point of view in mind the skmath.in Solutions for Class 8 Maths Chapter 9 Mensuration Exercise 9.2. The NCERT Solutions for chapter Mensuration solutions explains the easy a…
1. Which is greater? (a) 0.3 or 0.4 (b) 0.07 or 0.02 (c) 3 or 0.8 (d) 0.5 or 0.05 (e) 1.23 or 1.20 (f) 0.099 or 0.19 (g) 1.5 or 1.50 (h) 1.431 or 1.490 (i) 3.3 or 3.300 (j) 5.64 or 5.603 Solutions: (a) 0…
1. Find the area of the rectangles whose sides are: (a) 3 cm and 4 cm (b) 12 m and 21 m (c) 2 km and 3 km (d) 2 m and 70 cm Solutions: Area of rectangle = Length × Breadth (a) l = 3 cm and b = 4 cm Area = l × b = 3 × 4 = 12 \(\…
1. Find the areas of the following figures by counting squares: (a) The figure contains only 9 fully filled squares. Hence, the area of this figure will be 9 square units. (b) The figure contains only 5 fully filled squares. H…
1. Find the perimeter of each of the following figures: Solutions: (a) Perimeter = Sum of all the sides = 1 + 2 + 4 + 5 = 12 cm (b) Perimeter = Sum of all the sides = 23 + 35 + 35 + 40 = 133 cm (c) Perimeter = Sum of…
1. Subtract: (a) ₹ 18.25 from ₹ 20.75 (b) 202.54 m from 250 m (c) ₹ 5.36 from ₹ 8.40 (d) 2.051 km from 5.206 km (e) 0.314 kg from 2.107 kg Solutions: (a) ₹ 20.75 – ₹ 18.75 =₹ 2.50 \[ \displaylines{ 20.75\\ – 18.2…
Chapter 11- Mensuration Ex 9.3 Keeping the examination point of view in mind the skmath.in team has prepared NCERT Solutions for Class 8 Maths Chapter 9 Mensuration Exercise 9.3. The NCERT Solutions for chapter Mensuration soluti…
1. Determine if the following are in proportion. (a) 15, 45, 40, 120 (b) 33, 121, 9,96 (c) 24, 28, 36, 48 (d) 32, 48, 70, 210 (e) 4, 6, 8, 12 (f) 33, 44, 75, 100 Solutions: (a) 15, 45, 40, 120 \({15 \over 45} = {1 \over…
1. If the cost of 7 m of cloth is ₹ 1470, find the cost of 5 m of cloth. Solutions: Cost of 7 m cloth = ₹ 1470 Cost of 1 m cloth = \(1470 \over 7\) = ₹ 210 So, cost of 5 m cloth = 210 × 5 = 1050 ∴ Cost of 5 m cloth is …
1. There are 20 girls and 15 boys in a class. (a) What is the ratio of number of girls to the number of boys? (b) What is the ratio of number of girls to the total number of students in the class? Solutions: Number of girls…
Factor: A factor of a number is an exact divisor of that number i.e. the factor leaves remainder 0 when it divides the number. Factors of 16 16 x 1 = 16 8 x 2 = 16 4 x 4 = 16 Factoring: Factoring is the process of finding the …
1. Express as rupees using decimals. (a) 5 paise (b) 75 paise (c) 20 paise (d) 50 rupees 90 paise (e) 725 paise Solutions: We know that there are 100 paise in 1 rupee. (a) 5 paise = \(5 \over 100\) rupees = Rupe…
