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Select the INCORRECT match.
| Faces | Edges | Vertices | ||
|---|---|---|---|---|
| A | Cube | 6 | 12 | 8 |
| B | Square Pyramid | 5 | 8 | 5 |
| C | Triangular Prism | 5 | 6 | 9 |
| D | Triangular Pyramid | 4 | 6 | 4 |
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Fill in the blanks and select the correct option.
(i) The side faces of a rectangular prism are ______ in shape.
(ii) If each face of a triangular pyramid is a/an ______ triangle, then it is a regular tetrahedron.
(iii) The sum of vertices and faces is always two ______ than edges in any polyhedron.
(iv) If a polyhedron has 12 faces and 25 vertices, then it has ______ edges.
| (i) | (ii) | (iii) | (iv) | |
|---|---|---|---|---|
| A | Triangular | Isosceles | more | 32 |
| B | Rectangular | Isosceles | less | 35 |
| C | Rectangular | Equilateral | more | 35 |
| D | Triangular | Equilateral | more | 35 |
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State ‘T’ for true and ‘F’ for false.
(A) Two distinct lines meeting at a point are called concurrent lines.
(B) A line segment has 2 distinct end points.
(C) A line has no end points.
| (A) | (B) | (C) | |
| A | F | T | F |
| B | F | T | T |
| C | T | F | F |
| D | T | T | T |