Exploring Some Geometric Themes Class 8 Fill in the blanks

Exploring Some Geometric Themes Class 8 Fill in the blanks

Exploring Some Geometric Themes Class 8 Fill in the blanks

Question 1.

The common portion of two adjacent faces of a cuboid is called __________ .

Answer:

edge

Question 2.

A plane surface of a solid enclosed by edges is called ____________ .

Answer:

face

Question 3.

The corners of solid shapes are called its __________ .

Answer:

vertices

Question 4.

A solid with no vertex is ___________ .

Answer:

sphere

Question 5.

If a solid shape has 12 faces and 20 vertices, the number of edges in the solid is ____________ .

Answer:

30.

Exploring Some Geometric Themes Class 8 True or False

Question 1.

A cylinder has no vertex.

Answer:

True

Question 2.

All the faces, except the base of a square pyramid are triangular.

Answer:

True

Question 3.

A pyramid has only one vertex.

Answer:

False

Question 4.

A triangular prism has 5 faces, 9 edges and 6 vertices.

Answer:

True

Question 5.

The top view of

Answer:

True

Exploring Some Geometric Themes Class 8 Match the Following

Match the Column I with Column II.

Answer:

(i) - (b)

(ii) - (d)

(iii) - (c)

(iv) - (a)

(v) - (e)