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A pyramid on an n sided polygon has ______ faces.

A pyramid on an n sided polygon has n+1 faces. Definition of pyramid A pyramid has a polygonal base and flat triangular faces, which join at a... View Article

In the figure, the number of faces meeting at B is ________.

The number of faces meeting at B is 4.... View Article

Rectangular prism is also called a ________.

A rectangular prism is also called a Cuboid. A cuboid is a three dimensional solid that has 6 faces (rectangular), 8 vertices and 12 edges.... View Article

Square prism is also called a _______.

A square prism is also called a cube. A cube is a platonic solid because all six of its faces are congruent squares. A cube is a 3-D solid... View Article

In a blueprint of a room, an architect has shown the height of the room as 33 cm. If the actual height of the room is 330 cm, then the scale used by her is (a) 1:11 (b) 1:10 (c) 1:100 (d) 1:3

The correct answer is (b) 1: 10 Justification From the given details we note that An architect has shown the height of the room as 33 cm The... View Article

Which of the following cannot be true for a polyhedron? (a) V = 4, F = 4, E = 6 (b) V = 6, F = 8, E = 12 (c) V = 20, F = 12, E = 30 (d) V = 4, F = 6, E = 6

Solution:- The correct answer is (d) V = 4, F = 6, E = 6 Justification Euler’s formula for any polyhedron is, F + V – E = 2... View Article

In the given map, the distance between the places is shown using the scale 1 cm: 0.5 km. Then the actual distance (in km) between school and the book shop is (a) 1.25 (b) 2.5 (c) 2 (d) 1.1

Solution:- The correct answer is (d) 1.1 Scale = 1 cm: 0.5km Then the actual distance between school and the book shop is = 2.2 × 0.5... View Article

Which of the following shapes has a vertex.

Solution:- The correct answer is (c) The edges meet at a point called the vertex.... View Article

Side of a square garden is 30 m. If the scale used to draw its picture is 1cm: 5m, the perimeter of the square in the picture is (a) 20 cm (b) 24 cm (c) 28 cm (d) 30 cm

The correct answer is (b) 24 cm Justification Given, side of a square garden = 30m The scale to draw a garden picture is 1cm: 5m So, the... View Article

We have 4 congruent equilateral triangles. What do we need more to make a pyramid? (a) An equilateral triangle. (b) A square with same side length as of triangle. (c) 2 equilateral triangles with side length same as triangle. (d) 2 squares with side length same as triangle.

The correct answer is (b) A square with the same side length as of triangle. Justification We have to add a square with the same side... View Article

Which of the following is not a prism?

The correct answer is (b) By observing option (b) figure, the bottom and top faces are not congruent polygons.... View Article

Which of the nets given below will generate a cone?

Solution:- The correct answer is (a) It has circular base, which gives a cone.... View Article

The net shown below can be folded into the shape of a cube. The face marked with the letter L is opposite to the face marked with which letter?

The correct answer is (a) M... View Article

Which of the following is the top view of the given shape?

The correct answer is (a) ... View Article

In a solid if F = V = 5, then the number of edges in this shape is (a) 6 (b) 4 (c) 8 (d) 2

The correct answer is (c) 8 Justification Euler’s formula for any polyhedron is, F + V – E = 2 Given, F = V = 5 Where,... View Article

Solid having only line segments as its edges is a (a) Polyhedron (b) Cone (c) Cylinder (d) Polygon

The correct answer is (a) Polyhedron Justification A polyhedron is just a three-dimensional solid consisting of a group of polygons,... View Article

Which of the following 3D shapes does not have a vertex? (a) Pyramid (b) Prism (c) Cone (d) Sphere

The correct answer is (d) Sphere Justification The faces meet at edges which are line segments and the edges meet at a point called the vertex.... View Article

Which of the following can be the base of a pyramid? (a) Line segment (b) Circle (c) Octagon (d) Oval

The correct answer is (c) Octagon Justification A pyramid is a polyhedron whose base is a polygon and lateral faces are triangles. Octagon is... View Article

Which of the following is a two Dimensional figure? (a) Rectangle (b) Rectangular Prism (c) Square Pyramid (d) Square Prism

The correct answer is (a) Rectangle Justification The rectangle is a two-dimensional figure. It has length and breadth. A rectangle is a type... View Article

Which of the following is a regular polyhedron? (a) Cuboid (b) Triangular prism (c) Cube (d) Square prism

The correct answer is (c) Cube Justification A cube is a platonic solid because all six of its faces are congruent squares. Platonic solid is a... View Article

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