Surface Areas

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Answered on 23/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Surface Areas

What is the side of the square if the total surface area of a cube is 96 sq. cm?

Ankit Agarwal

Quest for education

4 cm.
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Answered on 22/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Surface Areas

What do you mean by dimensions of any geometrical shapes?

Chandan Singh

Math Learning In easy Way

Two geometric shapes that share the same basic shape are called "similar to each other." If both shapes are the same size, they are called "congruent." Geometric shapes can be two-dimensional or flat. They can be three-dimensional, meaning they possess depth and volume.
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Answered on 23/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Surface Areas

The volumes of the two spheres are in the ratio 64 : 27. Find the ratio of their surface areas?

Ankit Agarwal

Quest for education

16 : 9.
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Answered on 02/12/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Surface Areas

Two cubes each of volume 64 cubic cm are joined end to end. Find the total surface area of the resulting cuboid?

Sreedevi A.

Teacher

T.S.A of cuboid = 2 (lb+bh+lh);Given volume of the cube = 64 cubic cm. From this we can find the length of the side of the cube by taking the cube root of 64 and it is equal to 4. Now we have length of the cube = breadth of the cube = height of the cube = 4cm. On joining 2 such cubes, we get length... read more
T.S.A of cuboid = 2 (lb+bh+lh);Given volume of the cube = 64 cubic cm. From this we can find the length of the side of the cube by taking the cube root of 64 and it is equal to 4. Now we have length of the cube = breadth of the cube = height of the cube = 4cm. On joining 2 such cubes, we get length of the cuboid = 4+4 =8 cm; breadth and height remain same as we are joining the two cubes side by side. On substituting the values, we get T.S.A = 160 square cm read less
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Asked on 02/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Surface Areas

What is the circumference of the circle if its radius is 2r?

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Asked on 02/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Surface Areas

What is the area of a sphere if its radius 2r?

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Asked on 02/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Surface Areas

Is it true that the radius of a cylinder is doubled and height is halved, the volume will be doubled?

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Asked on 02/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Surface Areas

How many square metres of canvas is required for a conical tent whose height is 3.5 m and the radius... read more
How many square metres of canvas is required for a conical tent whose height is 3.5 m and the radius of the base is 12 m? read less

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Asked on 02/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Surface Areas

A cylindrical roller 2.5 m in length, 1.75 m in radius when rolled on road was found to cover the area... read more
A cylindrical roller 2.5 m in length, 1.75 m in radius when rolled on road was found to cover the area of 5500 sq. m. How many revolutions did it make? read less

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Asked on 02/11/2016 Tuition/Class IX-X Tuition Tuition/Class IX-X Tuition/Mathematics Surface Areas

Find the curved surface area of a sphere of radius 5.6 cm?

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