NCERT Solutions for Class 9 Maths Chapter 13 - Surface Areas and VolumesShare
The Class 9 Chapter 13 - Surface Area and Volumes NCERT Solutions have been made available here in a step-by-step manner. These Solutions have been expertly created by Goprep’s teachers who have thorough understanding of the topics discussed in the Chapter. So, if you are looking to master the various concepts explained in the Surface Areas and Volumes Chapter, you can do so by referring to these NCERT Solutions for Chapter 13.
The Class 9 Maths Chapter 13 mainly deals with the concept of Surface Areas and Volumes. Further, the Chapter goes on to explain critical topics such as the Surface Area of a Cuboid and a Cube, Surface Area of a Sphere, Volume of a Cylinder and Volume of a Sphere among others. So, to gain a better insight into all these topics and prepare the Chapter in a proper time frame, you can simply take the help of our NCERT Solutions For Class 9 Maths Chapter 13.
NCERT Solutions for Class 9 Maths Chapter 13 - Surface Areas and Volumes
A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is to be open at the top. Ignoring the thickness of the plastic sheet, determine:
(i) The area of the sheet required for making the box.
(ii) The cost of sheet for it, if a sheet measuring 1m2 costs Rs 20
The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of Rs 7.50 per m2.
The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the four walls at the rate of Rs 10 per m2 is Rs 15000, find the height of the hall.
[Hint: Area of the four walls = Lateral surface area]
The paint in a certain container is sufficient to paint an area equal to 9.375 m2 How many bricks of dimensions 22.5 cm × 10 cm × 7.5 cm can be painted out of this container?
A cubical box has each edge 10 cm and another cuboidal box is 12.5 cm long, 10 cm wide and 8 cm high.
(i) Which box has the greater lateral surface area and by how much?
(ii) Which box has the smaller total surface area and by how much?
Shanti Sweets Stall was placing an order for making cardboard boxes for packing their sweets. Two sizes of boxes were required. The bigger of dimensions25 cm × 20 cm × 5 cm and the smaller of dimensions 15 cm × 12 cm × 5 cm for all the overlaps, 5% of the total surface area is required extra. If the cost of the cardboard is Rs 4 for 1000 cm2, find the cost of cardboard required for supplying 250 boxes of each kind
Parveen wanted to make a temporary shelter for her car, by making a box-like structure with tarpaulin that covers all the four sides and the top of the car (with the front face as a flap which can be rolled up). Assuming that the stitching margins are very small, and therefore negligible, how much tarpaulin would be required to make the shelter of height 2.5 m, with base dimensions 4 m × 3 m?
|Chapter 1 - Number System|
|Chapter 2 - Polynomials|
|Chapter 3 - Coordinate Geometry|
|Chapter 4 - Linear Equations in two Variables|
|Chapter 5 - Introduction to Euclid's Geometry|
|Chapter 6 - Lines and Angles|
|Chapter 7 - Triangles|
|Chapter 8 - Quadrilaterals|
|Chapter 9 - Areas of Parallelograms and Triangles|
|Chapter 10 - Circles|
|Chapter 11 - Constructions|
|Chapter 12 - Heron's Formula|
|Chapter 13 - Surface Areas and Volumes|
|Chapter 14 - Statistics|
|Chapter 15 - Probability|