#### Chapters

Chapter 2: Estimation

Chapter 3: Numbers in India and International System (With Comparison)

Chapter 4: Place Value

Chapter 5: Natural Numbers and Whole Numbers (Including Patterns)

Chapter 6: Negative Numbers and Integers

Chapter 7: Number Line

Chapter 8: HCF and LCM

Chapter 9: Playing with Numbers

Chapter 10: Sets

Chapter 11: Ratio

Chapter 12: Proportion (Including Word Problems)

Chapter 13: Unitary Method

Chapter 14: Fractions

Chapter 15: Decimal Fractions

Chapter 16: Percent (Percentage)

Chapter 17: Idea of Speed, Distance and Time

Chapter 18: Fundamental Concepts of algebra

Chapter 19: Fundamental Operations (Related to Algebraic Expressions)

Chapter 20: Substitution (Including Use of Brackets as Grouping Symbols)

Chapter 21: Framing Algebraic Expressions (Including Evaluation)

Chapter 22: Simple (Linear) Equations (Including Word Problems)

Chapter 23: Fundamental Concepts geometry

Chapter 24: Angles (With their Types)

Chapter 25: Properties of Angles and Lines (Including Parallel Lines)

Chapter 26: Triangles (Including Types, Properties and Constructions)

Chapter 27: Quadrilateral

Chapter 28: Polygons

Chapter 29: The Circle

Chapter 30: Revision Exercise Symmetry (Including Constructions on Symmetry)

Chapter 31: Recognition of Solids

Chapter 32: Perimeter and Area of Plane Figures

Chapter 33: Data Handling (Including Pictograph and Bar Graph)

Chapter 34: Mean and Median

## Chapter 28: Polygons

### Selina solutions for Class 6 Mathematics Chapter 28 Polygons Exercise 28 (A)

**State, whether the following figure is a polygon or not:**

Yes

No

**State, whether the following figure is a polygon or not:**

Yes

No

**State, whether the following figure is a polygon or not:**

Yes

No

**State, whether the following figure is a polygon or not:**

Yes

No

**State, whether the following figure is a polygon or not:**

Yes

No

Find the sum of interior angle of a polygon with: 9 sides

Find the sum of interior angle of a polygon with: 13 sides

Find the sum of interior angle of a polygon with: 16 sides

Find the number of side of a polygon, if the sum of its interior angle is: 1440°

Find the number of sides in a polygon if the sum of its interior angle is: 1620°

Is it possible to have a polygon, whose sum of interior angles is 1030°.

If all the angles of a hexagon are equal, find the measure of each angle.

If all the angles of an octagon are equal, find the measure of each angle.

One angle of a quadrilateral is 90° and all other angles are equal ; find each equal angle.

If angles of quadrilateral are in the ratio 4 : 5 : 3 : 6 ; find each angle of the quadrilateral.

If one angle of a pentagon is 120° and each of the remaining four angles is x°, find the magnitude of x.

The angles of a pentagon are in the ratio 5 : 4 : 5 : 7 : 6 ; find each angle of the pentagon.

Two angles of a hexagon are 90° and 110°. If the remaining four angles arc equal, find each equal angle.

### Selina solutions for Class 6 Mathematics Chapter 28 Polygons Exercise 28 (B)

**Fill in the blanks:**

In case of regular polygon, with

Number of sides |
Each exterior angle |
Each interior angle |

(i) 6 | _________ | __________ |

(ii) 8 | _________ | __________ |

(iii) ________ | 36° | __________ |

(iv) _______ | 20° | __________ |

(v) _________ | _________ | 135° |

(vi) ________ | _________ | 165° |

Find the number of sides in a regular polygon, if its interior angle is: 160°

Find the number of sides in a regular polygon, if its interior angle is: 150°

Find a number of side in a regular polygon, if it exterior angle is: 30°.

Find number of side in a regular polygon, if it exterior angle is: 36

Is it possible to have a regular polygon whose interior angle is: 135°

Is it possible to have a regular polygon whose interior angle is: 155°

Is it possible to have a regular polygon whose exterior angle is: 100°

Is it possible to have a regular polygon whose exterior angle is: 36°

The ratio between the interior angle and the exterior angle of a regular polygon is 2: 1. Find:

(i) each exterior angle of the polygon ;

(ii) number of sides in the polygon.

## Chapter 28: Polygons

## Selina solutions for Class 6 Mathematics chapter 28 - Polygons

Selina solutions for Class 6 Mathematics chapter 28 (Polygons) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Class 6 Mathematics solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 6 Mathematics chapter 28 Polygons are Concept of Polygons - Side, Vertex, Adjacent Sides, Adjacent Vertices and Diagonal, Simple Polygons (Upto Octagons Regulars as Well as Non-regular)., Sum of Angles of a Polynomial, Sum of Exterior Angles of a Polynomial, Regular Polynomial.

Using Selina Class 6 solutions Polygons exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 6 prefer Selina Textbook Solutions to score more in exam.

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