exercise 13.1 ncert Archives

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AnilSinghBoraGuru

Asked: August 23, 2021In: NCERT Class 9th Maths

Praveen 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 2.5m, with base dimensions 4m×3m? Solution: Q.8

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AnilSinghBoraGuru

Asked: August 23, 2021In: NCERT Class 9th Maths

Shanti Sweets Stall was placing an order for making cardboard boxes for packing their sweets. Two sizes of boxes were required. The bigger of dimensions 25 cm×20cm×5cm and the smaller of dimension 15cm×12cm×5cm. 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. Q.7

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AnilSinghBoraGuru

Asked: August 23, 2021In: NCERT Class 9th Maths

A small indoor greenhouse (herbarium) is made entirely of glass panes (including base) held together with tape. It is 30cm long, 25 cm wide and 25 cm high. (i)What is the area of the glass? (ii)How much of tape is needed for all the 12 edges? Q.6

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AnilSinghBoraGuru

Asked: August 23, 2021In: NCERT Class 9th Maths

A cubical box has each edge 10 cm and another cuboidal box is 12.5cm 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? Q.5

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Give me the best and simple way for solving the question of class 9th of Surface areas and Volumes chapter ...Read more

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AnilSinghBoraGuru

Asked: August 23, 2021In: NCERT Class 9th Maths

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? Q.4

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How can i solve this tough question of class 9th ncert of Surface areas and Volumes of math of exercise ...Read more

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AnilSinghBoraGuru

Asked: August 23, 2021In: NCERT Class 9th Maths

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.] Q.3

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Give me the best way for solving the question of class 9th of Surface areas and Volumes of exercise 13.1 ...Read more

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AnilSinghBoraGuru

Asked: August 23, 2021In: NCERT Class 9th Maths

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 ceiling at the rate of Rs 7.50 per m2. Q.2

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AnilSinghBoraGuru

Asked: August 23, 2021In: NCERT Class 9th Maths

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. Q.1

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SonuNewbie

Asked: August 3, 2021In: NCERT Class 10th Maths

A wooden article was made by scooping out a hemisphere from each end of a solid cylinder, as shown in figure. If the height of the cylinder is 10 cm, and its base is of radius 3.5 cm, find the total surface area of the article. Q.9

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Give me the method of this chapter surface areas and volumes of ncert class 10 . Find the best solution ...Read more

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SonuNewbie

Asked: August 3, 2021In: NCERT Class 10th Maths

From a solid cylinder whose height is 2.4 cm and diameter 1.4 cm, a conical cavity of the same height and same diameter is hollowed out. Find the total surface area of the remaining solid to the nearest cm2. Q.8

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Give me the best method to solve the surface areas and volumes of ncert class 10 , Find the easiest ...Read more

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