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Secondary School (English Medium) (5 to 8) कक्षा ८ - CBSE Question Bank Solutions

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Name the property used in the following.

`(-2)/7 + 0 = 0 + (-2)/7 = - 2/7`

[1] Rational Numbers
Chapter: [1] Rational Numbers
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Name the property used in the following.

`3/8 xx 1 = 1 xx 3/8 = 3/8`

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

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What is the least number that should be subtracted from 1385 to get a perfect square? Also find the square root of the perfect square.

[5] Squares and Square Roots
Chapter: [5] Squares and Square Roots
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Find the square root of 324 by the method of repeated subtraction.

[5] Squares and Square Roots
Chapter: [5] Squares and Square Roots
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Which amongst the following is not a polyhedron?

[10] Visualizing Solid Shapes
Chapter: [10] Visualizing Solid Shapes
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Which of the following will not form a polyhedron?

[10] Visualizing Solid Shapes
Chapter: [10] Visualizing Solid Shapes
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Which of the following is a regular polyhedron?

[10] Visualizing Solid Shapes
Chapter: [10] Visualizing Solid Shapes
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Which of the following is a two Dimensional figure?

[9] Mensuration
Chapter: [9] Mensuration
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Which of the following is the top view of the given shape?

[9] Mensuration
Chapter: [9] Mensuration
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In a three-dimensional shape, diagonal is a line segment that joins two vertices that do not lie on the ______ face.

[9] Mensuration
Chapter: [9] Mensuration
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A pentagonal prism has ______ faces.

[9] Mensuration
Chapter: [9] Mensuration
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Total number of regular polyhedra is ______.

[10] Visualizing Solid Shapes
Chapter: [10] Visualizing Solid Shapes
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A regular polyhedron is a solid made up of ______ faces.

[10] Visualizing Solid Shapes
Chapter: [10] Visualizing Solid Shapes
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A polyhedron can have 3 faces.

[10] Visualizing Solid Shapes
Chapter: [10] Visualizing Solid Shapes
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A polyhedron with least number of faces is known as a triangular pyramid.

[10] Visualizing Solid Shapes
Chapter: [10] Visualizing Solid Shapes
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Regular octahedron has 8 congruent faces which are isosceles triangles.

[10] Visualizing Solid Shapes
Chapter: [10] Visualizing Solid Shapes
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Every solid shape has a unique net.

[9] Mensuration
Chapter: [9] Mensuration
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How many faces, edges and vertices does a pyramid have with n sided polygon as its base?

[10] Visualizing Solid Shapes
Chapter: [10] Visualizing Solid Shapes
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In the given figure, identify the different shapes involved.

 

[9] Mensuration
Chapter: [9] Mensuration
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What figure is formed if only the height of a cube is increased or decreased?

[9] Mensuration
Chapter: [9] Mensuration
Concept: undefined >> undefined
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