Curve

Q.

What is a simple curve?

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

1. 
   
2. 
   
3. 
   
4. 
   

Q. Which one of these represent a "not simple closed curve"?

1. 
2. 
3. 
4. 

Q.

A _____ is the one that does not cross itself

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

1. 
   
2. 
   
3. 
4. 

Q.

The English alphabet Z represents a/an ______ curve.

1. closed

2. open

3. triangle

4. polygon

Q.

Is a circled made of infinite straight lines?

Q. Which of these is a simple open curve?

1. 
   
2. 
   
3. 
   
4. 
   

Q. Which of the following is not a curve?

1. Simple curve
2. Complex curve
3. Open Curve
4. Polygon

Q.

Question 5: Illustrate the following, if possible, with a rough diagram:
A polygon with two sides.

Q. Identify the open curves.

1. 
2. 
   
3. 
   
4. 
   

Q.

A closed curve is a curve that does not intersect itself.

1. True
2. False

Q.

A circle is a simple ________ which is not a polygon.

1. hexagon

2. closed curve

3. open curve

4. triangle

Q. The region of a figure consists of ___ and ___ .

1. The entire figure
2. The interior of the figure
3. The exterior of the figure
4. The boundary of the figure

Q. Identify the closed curves:

1. 
2. 
   
3. 
4. 

Q. Draw a rough diagram to illustrate the closed curve.

Q. ____ is the distance covered along the boundary of a closed planar figure.

1. Perimeter
2. Area
3. Volume
4. Height

Q. Classify this curve:

1. Simple curve
2. Circle
3. Closed Curve
4. Open Curve

Q. What kind of a curve is the letter O ?

1. Open curve
2. Closed curve
3. Abstract curve
4. Free curve

Q.

A man runs on a straight path. He starts to run in a park which is similar to a clock. He starts at 12 moves to 1 then to 3, 3 to 4, 4 to 5, 5 to 6, 6 to 7, 7 to 8, 8 to 9, 9 to 10, 10 to 12. Name the path in which he ran and also the total angle subtended at the center by his path. [4 MARKS]

Q. From the four curves given below, how many are closed curves?

1. 1
2. 2
3. 3
4. 4

Q. Classify the following curve as open or closed.

Q. Which of the following curves satisfies both the conditions, (1) non-simple and (2) open?

1. 
2. 
3. 
4. 

Q.

Classify the given curve as open or close.

1. open

2. close

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

1. 
   
2. 
   
3. 
4. 

Q. From the four curves given below, how many are closed curves?

1. 1
2. 2
3. 3
4. 4