2 D

Q. What is the difference between a 2D shape and a 3D shape ?

Q. The motion of a billiard ball on a billiard table is a/an

1. one-dimensional motion
2. two-dimensional motion
3. three-dimensional motion
4. zero-dimensional motion

Q. Motion in a plane can be described as dimensional motion.

Q. What is the dimension of the motion of a boat in a river?

1. One-dimensional
2. Zero-dimensional
3. Two-dimensional
4. Three-dimensional

Q. A $\text{2D}$ shape can be defined as a flat plane figure or a shape that has two dimensions – length and width.

1. True
2. False

Q.

List the name of the shapes shown in the attached figure which are in $2\text{D}$.

1. Rectangle, Circle, Pentagon, Square
2. Quadrilateral, Pentagon, Triangle, Square
3. Rectangle, Pentagon, Triangle, Square
4. All of the above.

Q. Motion of the earth around the sun is an example of

1. one-dimensional motion
2. three-dimensional motion
3. two-dimensional motion
4. zero-dimensional motion

Q. An ant began moving away from its home in the direction of the East. She came to a halt after a short distance and then began moving northward. And then, at a safe distance, she came to a halt and returned to its original location via shortest route. The dimension of movement and shape formed by the ant's movement are

1. $2\text{D}$, Rectangle
2. ​​​​$3\text{D}$, Rectangle
3. $2\text{D}$, Triangle
4. $3\text{D}$, Triangle

Q. Which motion(s) among the following are restricted to a plane?

1. One-dimensional motion
2. Two-dimensional motion
3. Three-dimensional motion

Q. Group the given figures into three groups of two figures each.

1. 2, 5; 1, 6; 3, 4
2. 1, 5; 2, 6; 3, 4
3. 1, 6; 2, 4; 3, 5
4. 1, 5; 3, 6; 2, 4

Q.

The figures that have only length and breadth are called ____