Question

which of the following will not form a polyhedron. a) 3 triangles. b)2 triangles and 3 parallelograms . c)8 triangles. 4) 1 Pentagon and 5 triangles​

Answer 1

Answer:

Option (a) will not form a polyhedron.

Step-by-step explanation:

Option (a) will not form a polyhedron because it must have more than four faces. So, it is not possible in 3 triangles which have 3 faces only.

(b) 2 triangles and 3 parallelograms form a polyhedron which satisfies its definition. The solid is made up of polygonal region called faces and these faces meet at edges called line segments and the edges meet at vertices are called point.

(c) 8 triangles can form a polyhedron because it has 8 faces.

(d) 1 pentagon and 5 triangles form a polyhedron which satisfies its definition. The solid is made up of polygonal region called faces and these faces meet at edges called line segments and the edges meet at vertices are called point.

Answer 2

Answer:

2 triangles and 3 parallelogram