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Question
State ‘T’ for the true and ‘F’ for false
(i) Pentagonal prism has 5 pentagons
(ii) Euler’s formula is true for all three dimensional figures.
(iii) All cubes are prism
(iv) A polyhedron with least number of faces is known as a triangle pyramid
| (i) Pentagonal prism has 5 pentagons |
| (ii) Euler’s formula is true for all three dimensional figures. |
| (iii) All cubes are prism |
| (iv) A polyhedron with least number of faces is known as a triangle pyramid |
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Solution
(i) Pentagonal prism has 7 pentagons. (F)
(ii) Euler's formula is true only for Polyhedron. (F)
(iii) All cubes are prism. (T)
(iv) A polyhedron with least number of faces is known as a triangular pyramid. (T)
Option D is Correct
(ii) Euler's formula is true only for Polyhedron. (F)
(iii) All cubes are prism. (T)
(iv) A polyhedron with least number of faces is known as a triangular pyramid. (T)
Option D is Correct
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