MEDIUM
9th ICSE
IMPORTANT
Earn 100

The dimensions of the cross-section of a girder, 2.5 m long, are shown in cm in the diagram. Find the weight, if the material weighs 7.8 gm per cm3.

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Important Questions on Surface Area and Volume of 3D Solids

MEDIUM
9th ICSE
IMPORTANT
The cross-area of a pipe is 42 cm, and water is pouring out of it at the rate of 1.25 m per sec. If the pipe remains full, find the number of litres discharged per minute. 
MEDIUM
9th ICSE
IMPORTANT

The Figure shows a solid of uniform cross-section. Find the volume of the solid. All measurements are in centimetres. Assume that all angles in the figure are right angles.

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MEDIUM
9th ICSE
IMPORTANT
A swimming pool is 50 m long and 15 m wide. Its shallow and deep ends are 112 m and 412 m deep respectively. If the bottom of the pool slopes uniformly, If the amount of water is k litres required to fill the pool then find the value of k.
MEDIUM
9th ICSE
IMPORTANT
The area of cross-section of a pipe is 5.4 cm2 and water is pumped out of it the rate of 27 km/h. Find in litres the volume of water which flows out of the pipe in one minute.
MEDIUM
9th ICSE
IMPORTANT

The horizontal cross-section of a water tank is in the shape of a rectangle with a semicircle at one end, as shown in figure. The water is 2.4 m deep in the tank. Calculate the volume of water in the tank in gallons. (Take π=227 and 1 gallon to be 4.5 litres)

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MEDIUM
9th ICSE
IMPORTANT

Figure shows the end face of a triangular girder which is 5 m long. Find the volume of metal used in casting it. (Units in cm).

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HARD
9th ICSE
IMPORTANT
Figure shows the end-view of a swimming pool which is 10 m wide. Calculate the volume of water when it is full of water12 m from the top.
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MEDIUM
9th ICSE
IMPORTANT

The figure shows the end-face of a garage which is 20 m long. Find the area of the end-face.

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