NCERT Solutions for Class 9 Political Science Chapter 2

August 8, 202239 Insightful Publications

**NCERT Solutions for Class 9 Maths Chapter 12:** If you are looking for free NCERT Solutions for the exercise questions of CBSE Class 9 Maths Chapter 12, Heron’s Formula, then you have come to the right place. All the NCERT Solutions for Class 9 Maths Chapter 12, Heron’s Formula have been provided here by the academic experts at Embibe. Every problem from the chapter has been solved according to the CBSE guidelines. Moreover, the NCERT Solutions for Class 9 Maths Chapter 12 involves solutions for exercise 12.1, and exercise 12.2.

The NCERT Solutions for Class 9 Maths Chapter 12 have been solved in such a manner that any 9th class student can understand them. You can download the NCERT Solutions for Class 9 Maths Chapter 12 PDF from here.

This chapter deals with Heron’s formula, and its applications. The NCERT Solutions for Class 9 Maths Chapter 14 involves exercise 12.1, and exercise 12.2. Here are the sections that have been covered in the CBSE Class 9 Maths Chapter 12, Heron’s Formula:

Exercise | Topics |
---|---|

12.1 | Introduction |

12.2 | Area of a Triangle – by Heron’s Formula |

12.3 | Application of Heron’s Formula in Finding Areas of Quadrilaterals |

12.4 | Summary |

Students can check and download the NCERT Solutions for Class 9 Maths Chapter 12 in PDF format from the link given below:

**Download NCERT Solutions for Class 9 Maths Chapter 12 PDF**

Heron’s Formula is used to find the area of a triangle. This chapter starts with finding the area of a triangle using Heron’s Formula in different given situations. The chapter also deals with other concepts related to the area of the triangles**. **Students will also learn about the application of Heron’s Formula to find the area of quadrilaterals. The area of a quadrilateral whose sides and one diagonal are given can be calculated by dividing the quadrilateral into triangles and then by using Heron’s Formula. The application of Heron’s Formula can be used in various outdoor geometries.

**Click Here** to check Class 9 Maths – Heron’s formula.

Solving the NCERT questions will help you understand the concepts in a better way. The more you practice these questions, the better you will get at solving questions. Competitive examinations like Olympiads demand a student to know the practical aspects of the concepts. The questions asked in these examinations are more practical oriented.

Although solving the NCERT questions cannot guarantee that you will be able to crack the competitive examinations, it can help you in building a strong foundation required to crack these kinds of examinations.

Understand the concepts and then try to solve the questions at the end of the chapter on your own. Refer to the CBSE Class 9 Maths Chapter 12 solutions provided here only when you get stuck in a question. Also, students can take the **CBSE Class 9 Maths Chapter 12 mock test** to test their command over the chapter.

NCERT SOLUTIONS FOR CLASS 9 MATHS CHAPTER 11 | NCERT SOLUTIONS FOR CLASS 9 MATHS | NCERT SOLUTIONS FOR CLASS 9 MATHS CHAPTER 13 |

Some of the important questions from this chapter are as under:

1 Mark Important Questions From Heron’s Formula |

- Find the area of a right triangle whose sides containing the right angle are 5cm and 6cm.
- Find the cost of levelling a ground in the form of a triangle with sides 16m, 12m and 20m at Rs. 4 per sqr. meter.
- Find the area of a right triangle whose sides containing the right angle are 5cm and 6cm.
- The perimeter of an isosceles triangle is 32 cm. The ratio of the equal side to its base is 3:2. Find the area of the triangle.

2 Mark Important Questions From Heron’s Formula |

- Find the area of a triangle to sides of which are 18cm and 10cm and the perimeter is 42cm.
- Sides of a triangle are in the ratio of 12:17:25 and its perimeter is 540 cm. Find its area.
- An umbrella is made by sticking 10 triangle pieces of cloth of two different colours, each piece measuring 20cm, 50 cm and 50 cm. How much cloth of each colour is required for the umbrella?
- Find the area of an isosceles triangle, the measure of one of its equals side being ‘b’ and the third side ‘a’.

3 Mark Important Questions From Heron’s Formula |

- Radha made a picture of an aeroplane with coloured paper as shown in the figure. Find the total area of the paper used.
- A rhombus shaper field has green grass for 18 cows to graze. If each side of the rhombus is 30m and its longer diagonal is 48m, grass of how much area of grass field will each cow be getting?
- A parallelogram, the length of whose side is 60 m and 25 m has one diagonal 65 m long. Find the area of the parallelogram.
- The perimeter of a triangle is 450m and its sides are in the ratio of 13:12:5. Find the area of the triangle.

4 Mark Important Questions From Heron’s Formula |

- The perimeter of a right triangle is 24 cm. If its hypotenuse is 10cm, find the other two sides. Find its area by using the formula area of a right triangle. Verify your result by using Heron’s formula.

**Ans:** Heron’s formula is very important as it helps us to find the area of a triangle with three sides of various lengths. Heron’s formula is also used to calculate the area of the quadrilateral by dividing the quadrilateral into two scalene triangles.

**Ans:** You can learn how Heron’s formula is used to calculate the area of a triangle. This chapter starts with finding the area of a triangle using Heron’s Formula in different given situations. The chapter also deals with other concepts related to the area of the triangles**. **Students will also learn about the application of Heron’s Formula to find the area of quadrilaterals.

**Ans:** The concepts included in the NCERT Solutions for Class 9 Maths Chapter 12 are as follows:

– 12.1 Introduction

– 12.2 Area of Triangle- by Heron’s Formula

– 12.3 Application of Heron’s Formula in Finding Areas of Quadrilaterals

– 12.4 Summary

**Ans:** All the NCERT Solutions for Class 9 Maths Chapter 12 – Heron’s Formula has been provided here by the academic experts at Embibe. Every problem from the chapter has been solved according to the CBSE guidelines. Solving the NCERT questions will help you understand the concepts in a better way. Moreover, it comes handy when you are stuck with homework’s and assignments.

**Ans:** The NCERT Solutions for Class 9 Maths Chapter 12 involves 2 exercises (Exercise 12.1 and Exercise 12.2).