Question

II. FILL IN THE BLANKS
1. Two faces of a solid meet in an_______
2. A rectangular pyramid has_____vertices.
3. Cuboid is a______
dimensional figure.
4. Cone is a special type of a_____
5. Sphere is a solid which has only______face.
6.______faces in a prism are always congruent.
7. A tetrahedron has______
edges.
8. A line where two faces of a solid meets is called its______
9.A cube has_____edges and _____vertices.
10.A cylindee had ____faces , ______vertices and ______ edges.​

Answer 1

Answer:

désolé je ne connais pas l'anglais donc je ne peux pas répondre

Answer 2

Answer:



 



 

• 3D shapes/objects are those which do not lie completely in a

plane.

• 3D objects have different views from different positions.

• A solid is a polyhedron if it is made up of only polygonal faces, the

faces meet at edges which are line segments and the edges meet at

a point called vertex.

• Euler’s formula for any polyhedron is,

F + V – E = 2

Where F stands for number of faces, V for number of vertices and

E for number of edges.

• Types of polyhedrons:

(a) Convex polyhedron

A convex polyhedron is one in which all faces make it convex.

e.g.

(1) (2) (3) (4)