In each of the following, state if the statement is true (T) of false (F):
(i) Number of faces in a cuboid and the number of faces in a cube are equal.
(ii) A cube has tweleve vertices
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Q2
Which of the following statements are true ? (i) All cubes are cuboids. (ii) All cuboids are cubes. (iii) A cube has 6 faces, 8 vertices and 12 edges. (iv) A cube has 8 faces, 12 vertices and 6 edges.
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Q3
Which of the following statement(s) is/are true?
(i) All cubes are cuboids.
(ii) All cuboids are cubes.
(iii) A cube has 6 faces, 8 corners, 12 edges.
(iv) A cube has 8 faces, 12 corners and 6 edges.
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Q4
Fill in the blanks.
(1) Each face of a cube is ........ .
(2) A cuboid has ........ edges.
(3) A cube has .......... faces.
(4) A cuboid has ........ vertices.
(5) The standard units of volume are ......... and ........ .
(6) All the edges of a cube are of ........ length.
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Q5
Which of the following statements are true or false for a rectangle?
(i) It has two pairs of equal opposite sides.
(ii) It has all its sides of equal length.
(iii) Its diagonals are equal.
(iv) Its diagonals bisect each other.
(v) Its diagonals are perpendicular to each other.