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Chapter 20 of 26
Study Plan

Perimeters And Areas Of Plane Figures

NIOS · Class 10 · Maths

Step-by-step guide to study Perimeters And Areas Of Plane Figures in NIOS Class 10 Maths. Topics to cover, practice strategy, and time allocation.

42 questions24 flashcards5 concepts

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An infographic summarizing the perimeter and area formulas for common 2D geometric shapes like rectangles, squares, parallelograms, triangles, rhombuses, trapeziums, and circles. Each figure should be
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Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas, and key concepts.

2
Day 3

Practice Problems

Solve textbook exercises and additional practice questions. There are 42 questions available for this chapter.

3
Day 4

Revise & Test

Revise key formulas and concepts without looking at notes. Take a practice quiz to test your understanding. Mark weak areas for re-revision.

4
Day 7

Spaced Revision

Revisit Perimeters And Areas Of Plane Figures after a week. Use flashcards for quick recall. Solve previous year questions from this chapter.

What to Focus On

  • Rectangle perimeter = 2(l+b), not length + breadth.
  • Square area = a^2 and diagonal = a√2.
  • Triangle area using base and height = 1/2 × b × h.

  • Heron's Formula gives area from three sides only.
  • s = (a+b+c)/2 is the semi-perimeter.
  • The square root must be taken after multiplying all four factors.

  • Outer rectangular path area = outer rectangle area - inner rectangle area.
  • Cross paths formula = w(l+b) - w².
  • The simplified cross-path formula is w(l+b-w).

Common Mistakes to Avoid

The perimeter of a rectangle is length + breadth.

s in Heron's formula is the full perimeter.

Any triangle area problem can be solved with base × height even when the height is not given.

Memory Tips

Perimeter of a rectangle

Area of a square

Diagonal of a square

Heron's Formula

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Frequently Asked Questions

What are the important topics in Perimeters And Areas Of Plane Figures for NIOS Class 10 Maths?
Key topics in Perimeters And Areas Of Plane Figures include Perimeters and Areas Formula Overview, Complete Overview of Perimeters and Areas, Complete Overview of Perimeters and Areas. These are the concepts NIOS Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Perimeters And Areas Of Plane Figures — NIOS Class 10 Maths?
Understand the core concepts first, then work through the 42 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for NIOS Class 10 Maths.