Closed and Open Curves

Q.

What are open curves?

Q.

The figure shown is a ___.

Q.

Question 1: Classify the following curve as (i) Open or (ii) Closed.

Q.

Question 1: Classify the following curve as (i) Open or (ii) Closed

Q. The outline of a half moon can be best described as a

1. Circle
2. Closed curve
3. Ray
4. Line segment

Q. Draw a rough diagram to illustrate the following:
(i) Open curve
[2 marks]

Q. Which of the following is/are the correct example(s) of a segment in a circle?

1. <slice of cake asset>
   A slice of cake
2. <A broken biscuit Asset>
   A broken biscuit
3. <A flat tyre asset>
   A flat tyre
4. <Radar system asset>
   Radar system
   

Q.

Draw a diagram of the following:

Open curve

Q. Which of these is a simple open curve?

1. 
   
2. 
   
3. 
   
4. 
   

Q. The region inside a closed curve is called the ______ of the curve.

1. complexity
2. exterior
3. interior
4. boundary

Q.

State whether this closed curve is a polygon or not.

1. True
2. False

Q. Identify the curves which are not simple.

1. 
   
2. 
   
3. 
   
4. 
   

Q. Question 1: Classify the following curve as (i) Open or (ii) Closed.

Q. Which of these is open and not a simple curve?

1. 
   
2. 
   
3. 
4. 

Q.

Define a simple closed curve.

Q.

The figure shown is a ___

Q. Identify the open curves.

1. 
2. 
   
3. 
   
4. 
   

Q. Identify the closed curves:

1. 
2. 
   
3. 
4. 

Q. Identify the simple curves:

1. 
   
2. 
   
3. 
   
4. 
   

Q. Which one of these is a simple closed curve?

1. 
   
2. 
   
3. 
   
4. 
   

Q. The above figure is a closed curve.

1. True
2. False