Perimeter and Area Exercise 6.3 Class 9 Maths NCERT Solutions

The Perimeter and Area Exercise 6.3 solutions cover the area of sectors and shapes drawn inside a circle from the new Ganita Manjari book. This page gives clear steps for the NCERT Solutions Class 9 Maths Chapter 6 Perimeter and Area Exercise 6.3, so you can check your own answers and handle each sector sum with confidence.

• Questions solved: all 10 questions of Exercise 6.3, on sectors and circle regions
• Main skills: the sector area rule, the area of a quadrant, and inscribed shapes
• How it links: it applies the area idea from 6.2 to curved regions of a circle

These solutions are written by subject teachers, matched to the 2026-27 NCERT book, and checked line by line so a Class 9 student can follow each step.

What Does Class 9 Maths Chapter 6 Perimeter and Area Exercise 6.3 Cover?

Exercise 6.3 is about the area of a sector, which is a pie-slice part of a circle. You find this area as the fraction θ360^∘ of the whole circle area π r². The set also covers a quadrant, the region swept by a clock hand, and areas cleaned by wipers. The last few questions ask you to compare a shape inscribed in a circle with the circle itself.

Video Walkthrough

Source: Vedantu CBSE 10th on YouTube

Perimeter and Area Exercise 6.3 Question Breakdown

The set has ten questions that move from a plain sector to shapes fitted inside a circle. The table below shows what each question asks.

Sample Solved Question from Exercise 6.3

Here is Question 1 from Exercise 6.3, solved step by step, so you can see the method.

Question: Find the area of a sector of a circle with radius 7 cm if the angle of the sector is 60^∘.

Step 1. A sector is a fraction of the whole circle. Write the fraction as θ360^∘ = 60^∘360^∘ = 16.

Step 2. Put the values in the sector rule θ360^∘× π r² = 16× 227× 7².

Step 3. Simplify 227× 49 = 22 × 7 = 154.

Final answer. Area = 1546 ≈ 25.67 sq cm.

How to Use These Perimeter and Area Exercise 6.3 Solutions

Collegedunia gives you the full Exercise 6.3 answers as short, checked steps. Solve each question on paper first, then open the solution to compare your method with ours.

• Write the fraction θ360^∘ before you touch the arithmetic in any sector sum.
• Keep the sector rule and the area of a circle on a small formula card.
• Redo any question you got wrong the next day without looking at the Collegedunia steps.

More Class 9 Maths Perimeter and Area Solutions

Use the table below to open the full chapter page or any other exercise of Perimeter and Area.