RS Aggarwal Class 6 Solutions Polygons

Exercise 15

Q1) Which of the following are simple closed figures?

Soln:

  1. It is a simple closed figure because it does not intersect itself.
  2. It is a simple closed figure because it does not intersect itself.
  3. It is not a simple closed figure because it intersects itself.
  4. It is a simple closed figure because it does not intersect itself.
  5. It is not a simple closed figure because it intersects itself.
  6. It is a simple closed figure because it does not intersect itself.

Q2) Which of the following are polygon?

Soln:

  1. It is formed by four line segments and we know that a simple closed figure formed by three or more line segments is called a polygon. So it is a polygon named quadrilateral.
  2. It is formed by three line segments and we know that a simple closed figure formed by three or more line segments is called a polygon. So it is a polygon named triangle.
  3. It is formed by twelve line segments and we know that a simple closed figure formed by three or more line segments is called a polygon. So it is a polygon
  4. It is not a polygon because it contains curves.

Q3) Fill in the blanks

(i) A polygon is a simple closed figure formed by more than _____ line segments.

(ii) A polygon formed by three line segments is called _____

(iii) A polygon formed by four line segments is called a _______

(iv) A triangle has ____ sides and _____ angles.

(v) A quadrilateral has ____ sides and ____ angles.

(vi) A figure which ends at the starting point is called a _______

Soln:

(i) A polygon is a simple closed figure formed by more than two line segments.

(ii) A polygon formed by three line segments is called triangle.

(iii) A polygon formed by four line segments is called a quadrilateral.

(iv) A triangle has three sides and three angles.

(v) A quadrilateral has four sides and four angles.

(vi) A figure which ends at the starting point is called a closed figure.


Practise This Question

Handpicking method will be useful for the separation of two substances which are bigger in size and are visibly different.