मराठी

ABCDE is the end view of a factory shed which is 50 m long. The roofing of the shed consists of asbestos sheets as shown in the figure. The two ends of the shed are completely closed by brick walls.

Advertisements
Advertisements

प्रश्न

ABCDE is the end view of a factory shed which is 50 m long. The roofing of the shed consists of asbestos sheets as shown in the figure. The two ends of the shed are completely closed by brick walls.
Find the total surface area (including roofing) of the shed.

बेरीज
Advertisements

उत्तर

Total area 
= 2 x Area of asbestos + 2 x Area of wall + 2 x AE x length
= 500 + 2 x 72 + 2 x 7.5 x 50  ...(from a and b)
= 500 + 144 + 750
= 1394m2
∴ The total surface area of the shed is 1394m2.

shaalaa.com
Cross Section of Solid Shapes
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 20: Surface Areas and Volume of Solids - Exercise 25.3

APPEARS IN

फ्रँक Mathematics Part 1 [English] Class 9 ICSE
पाठ 20 Surface Areas and Volume of Solids
Exercise 25.3 | Q 10.3

संबंधित प्रश्‍न

A swimming pool is 40 m long and 15 m wide. Its shallow and deep ends are 1.5 m and 3 m deep respectively. If the bottom of the pool slopes uniformly, find the amount of water in liters required to fill the pool.


The following figure shows a closed victory-stand whose dimensions are given in cm.

Find the volume and the surface area of the victory stand. 


A swimming pool is 18 m long and 8 m wide. Its deep and shallow ends are 2 m and 1.2 m respectively. Find the capacity of the pool, assuming that the bottom of the pool slopes uniformly. 


A rectangular water-tank measuring 80 cm x 60 cm is filled form a pipe of cross-sectional area 1.5 cm2, the water emerging at 3.2 m/s. How long does it take to fill the tank?


The internal dimensions of a rectangular box are 12 cm x  `x` cm x 9 cm. If the length of the longest rod that can be placed in this box is 17 cm; find `x`.   


A swimming pool is 50 m long and 15 m wide. Its shallow and deep ends are 1.5 m and 4.5 m respectively. If the bottom of the pool slopes uniformly, find the amount of water in kilolitres required to fill the pool (1 m3 = 1000 liters).


The figure shows the cross section of 0.2 m a concrete wall to be constructed. It is 0.2 m wide at the top, 2.0 m wide at the bottom and its height is 4.0 m, and its length is 40 m. Calculate the cross sectional area


The cross section of a tunnel perpendicular to its length is a trapezium ABCD as shown in the figure. AM = BN; AB = 4.4 m, CD = 3 m The height of a tunnel is 2.4 m. The tunnel is 5.4 m long. Calculate the cost of flooring at the rate of Rs.2. 5 per m2.


ABCDE is the end view of a factory shed which is 50 m long. The roofing of the shed consists of asbestos sheets as shown in the figure. The two ends of the shed are completely closed by brick walls.


If the cost of asbestos sheet roofing is Rs. 20 per m2, find the cost of roofing.


The cross section of a swimming pool is a trapezium whose shallow and deep ends are 1 m and 3 m respectively. If the length of the pool is 50 m and its width is 1.5 m, calculate the volume of water it holds.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×