Math Problem Statement

Polygons are closed figures made up of only line segments. You are given two polygons: Polygon-1 (a quadrilateral) and Polygon-2 (a pentagon). Answer the following: (i) Identify the regular polygon and make a copy of it. (ii) What is that polygon called? (iii) Draw a triangle within it by joining the vertices of the polygon. (iv) Is a rectangle a regular polygon? State the reason for your answer.

Solution

Let me analyze the image and interpret the text to provide a solution.### Analysis of the Question:

Case Study Information:

  • Polygons are defined as closed figures made up of only line segments.
  • Two polygons are provided:
    • Polygon-1: A quadrilateral.
    • Polygon-2: A pentagon.

Questions to Answer:

  1. Identify the regular polygon and make a copy of it.
  2. What is that polygon called?
  3. Draw a triangle within it by joining the vertices of the polygon.
  4. Is a rectangle a regular polygon? State the reason for your answer.

Solutions:

  1. Identify the Regular Polygon and Make a Copy of It:

    • The second polygon (Polygon-2) is a regular polygon because:
      • All its sides are equal in length.
      • All its interior angles are equal.
    • This polygon is a pentagon (as mentioned in the provided answer).
  2. What Is That Polygon Called?

    • The polygon in question (Polygon-2) is a pentagon.
  3. Draw a Triangle Within It by Joining the Vertices of the Polygon:

    • To draw a triangle within the pentagon, any three vertices of the pentagon can be joined. For instance:
      • Connect vertices A, C, and E (or any other combination of three vertices).
  4. Is a Rectangle a Regular Polygon? State Reason for Your Answer:

    • No, a rectangle is not a regular polygon because:
      • Although its opposite sides are equal, all sides are not equal.
      • Additionally, the angles are equal (90°), but the sides being unequal disqualifies it from being regular.

Would you like a detailed drawing or more clarification? Let me know! 😊


Follow-Up Questions:

  1. What are the differences between regular and irregular polygons?
  2. Can a pentagon be both concave and convex? How would you classify Polygon-2?
  3. What formula can be used to calculate the interior angle of a regular polygon?
  4. How many diagonals can be drawn from a pentagon? Explain the calculation.
  5. Can a triangle ever be considered a regular polygon? Why?

Tip:

To determine if a polygon is regular, always check both equal sides and equal angles!