Recent questions tagged class8

If the diagonal and the area of a rectangle are $25\;m$ and $168\;m^2$, what is the length of the rectangle ?

asked Jun 18, 2015 by meena.p

1 answer

What is the area of a rhombus whose diagonals are lengths $10\;cm$ and $8.2\;cm$

asked Jun 18, 2015 by meena.p

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The area of a trapezium is $352\;cm^2$ The distance between parallel sides is $ 16\;cm$ . If one of the parallel sides is $ 25\;cm$ Find the other .

asked Jun 18, 2015 by meena.p

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The circumference of the base of a right circular cylinder is $88\;cm$ . If the height is $42\;cm$. Find the volume of the cylinder .

asked Jun 18, 2015 by meena.p

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Find the cost of digging a well 2m in radius and 14 m deep at the rate of $Rs. 1.20\;cm^3$

asked Jun 18, 2015 by meena.p

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Find the volume of a right circular cylinder whose height and radius of the base are $20\;cm$ and $14 \;cm$ respectively.

asked Jun 18, 2015 by meena.p

1 answer

A granary is in the shape of a cubord of size $8\;m \times 6\;m \times 3\;m$ If a bag of grain occupies a space of $0.65\;m^3$ haw many bags can be stored in the granuary.

asked Jun 18, 2015 by meena.p

1 answer

Find the diagonal of a cubord $25\;cm$ long , $20\;cm$ wide and $15\;cm$ high.

asked Jun 18, 2015 by meena.p

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The diagonal of a cube is $6 \sqrt{3}\;cm$. Find its volume

asked Jun 18, 2015 by meena.p

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A cubord measures $80\;cm \times 75\;cm \times 36\;cm$ . It is melted and a cube is formed. Find the edge of the cube .

asked Jun 18, 2015 by meena.p

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Find the total surface area of a cubord whose length $= 5\;m, $breath $=3\;m$ and height $=2.5\;m$

asked Jun 18, 2015 by meena.p

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The T.S.A of a cube is $384 \;cm^2$ Find its volume

asked Jun 17, 2015 by meena.p

1 answer

A parallelogram and rhombus are equal in area . The diagonals of the rhombus $48\;cm$ and $36\;cm$ . If one of the sides of the parallelogram is $4\;cm$ . find its corresponding altitude.

asked Jun 17, 2015 by meena.p

1 answer

The line joining the center of the two circles is called ________ of the cylinder .

asked Jun 17, 2015 by meena.p

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Find the height of a cubord whose base area is $180\;cm^2$ and volume is $900\;cm^3$

asked Jun 17, 2015 by meena.p

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Find the side of a cube whose surface area is $600\;cm^2$

asked Jun 17, 2015 by meena.p

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If each side of a cube is doubled its volume becomes _________

asked Jun 17, 2015 by meena.p

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The diagonal of the floor of a rectangle is increased by $60\%$ . By what percentage should the width be decreased to maintain the same area ?

asked Jun 17, 2015 by meena.p

1 answer

The length of a rectangle is increased by $60\%$ . By what should the width be decreased to maintain the same area ?

asked Jun 17, 2015 by meena.p

1 answer

A rectangular block of ice measures $40\;cm$ by $25\;cm$. by $15\;cm$ . calculate its weight in kg , if ice weight $\large\frac{9}{10}$ of the weight of the same volume of water and $10\;cm^3$ of water weights $1\;gm$

asked Jun 17, 2015 by meena.p

1 answer

The length of a cold storage is doubled its breadth. Its height is $3\;meter$. The area of its four walls is $108\;m^2$ . Find its volume.

asked Jun 17, 2015 by meena.p

1 answer

A cubord is of dimensions $64\;cm \times 54 \;cm \times 30$. how many small cubes with sides $6\;cm$ can be placed in the given cubord.

asked Jun 17, 2015 by meena.p

1 answer

The length of a side of a square field is $4m$ . What will be the attitude of the rhombus, if the area of the rhombus is equal to the square field and one of its diagonal is $2m$

asked Jun 17, 2015 by meena.p

1 answer

A parallelogram and rhombus are equal in area . The diagonals of the rhombus are $48\;cm$ and $36\;cm$ If one of the sides of the parallelogram is $54\;cm$ . Find its corresponding attitude .

asked Jun 17, 2015 by meena.p

1 answer

Find the area of a circle whose circumference is $440\;m$

asked Jun 16, 2015 by meena.p

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Find the radius of a circular field whose circumference mesures $2.2\;km$

asked Jun 16, 2015 by meena.p

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Find the circumference of a circle whose radius is $ 21\;cm$ Also find its area.

asked Jun 16, 2015 by meena.p

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The perimeter of two square are $748\;cm$ and $336\;cm$ . Find the perimeter of a square whose area is equal to the sum of the areas of the two squares.

asked Jun 16, 2015 by meena.p

1 answer

The length of a room is double its width. If the width is $65\;cm$ Find its Area.

asked Jun 16, 2015 by meena.p

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The rainfall recorded on a certain day was $5\;cm$ . Find the volume of water that fell on 2 hectare field .

asked Jun 16, 2015 by meena.p

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The diameter of a semicircular field is $14$ meters. What is the cost of fencing the plot at $Rs. 10/m$

asked Jun 16, 2015 by meena.p

1 answer

The area of a square field is $0.5 $ hectares . Find the length of its diagonal in meters.

asked Jun 16, 2015 by meena.p

1 answer

Find the area of a square the length of whose diagonal is $2.9 $ meters .

asked Jun 16, 2015 by meena.p

1 answer

The area of the floor of a rectangle hall of length $40\;m$ is $960\;m^2$ . carplets of size $6\;m \times 4\;m$ are available . Find how many carpets are required to covers the hall.

asked Jun 16, 2015 by meena.p

1 answer

If the diagonals of rhombus get doubled, then the area of the rhombus becomes ______ its original area.

asked Jun 16, 2015 by meena.p

1 answer

A regular hexagon is inscribed in a circle of radius r. The perimeter of a regular hexagon is

asked Jun 16, 2015 by meena.p

1 answer

If the height of a cylinder becomes the original height and radius is doubled then which of the following be true ?

asked Jun 16, 2015 by meena.p

1 answer

What is the area of the largest triangle that can be fitled into a rectangle of length l units and width w units

asked Jun 16, 2015 by meena.p

1 answer

A metal cube of edge $0.9\;m$ is melted and cast into cupboards whose dimensions are $30\;'cm$ by $15\;cm$ by $10\;cm$ . Find the number of cupboards .

asked Jun 16, 2015 by meena.p

1 answer

A village has a water tank measuring $25\;m$ by $8\;m$ which is full of water. How many persons can use the water if each person requires $200$ liters of water ?

asked Jun 16, 2015 by meena.p

1 answer

A ball has dimensions $34\;m \times 24 \;m \times 8\;m$ . Find the cost of white washing the four walls at the rate of $Rs. 10\;m/2$

asked Jun 16, 2015 by meena.p

1 answer

A beam $11\;cm$ long , $40 cm $ wide and cm deep is made of wood which weights $25\;kg/m^3$ . Find the weight of the beam

asked Jun 16, 2015 by meena.p

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The volume of a cube is $ 512\;cm^3$ . Find the surface area of the cube.

asked Jun 16, 2015 by meena.p

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Find the area in hectare of a square field whose one side measure $125\;m$

asked Jun 16, 2015 by meena.p

1 answer

A room measures $12\;m \times 9\;m$ . The floor of the room is to be covered by marble tiles measuring $45\;cm$ by $30\;cm$ . How many tiles are needed ?

asked Jun 16, 2015 by meena.p

1 answer

The cost of cultivating a square field at the rate of $Rs. 360$ per hectare is $ Rs. 3240$ What is the cost of putting a fence around it at the rate of $rs. 15$ per meter .

asked Jun 15, 2015 by meena.p

1 answer

The area of a rectangular field is$1120 \;m^2 $. Its length is $40 \;m$. Find the cost of fencing the boundary of the field at the rate of $Rs. 3.20 \;/m^2$

asked Jun 15, 2015 by meena.p

1 answer

The perimeter of a square field is $444\;m$ Find the area of the garden ?

asked Jun 15, 2015 by meena.p

1 answer

The volume of a cube is $64\;cm^3$ .Its surface area is

asked Jun 15, 2015 by meena.p

1 answer

The area of a parallelogram is $60\;cm^2$ and one of its attitude is $5\;cm$ . The length of its corresponding side is

asked Jun 15, 2015 by meena.p

1 answer

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