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Chapter 14 of 14
Flashcards

Area

CBSE · Class 8 · Mathematics

Flashcards for Area — CBSE Class 8 Mathematics. Quick Q&A cards covering key concepts, definitions, and formulas.

73 questions60 flashcards5 concepts

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Card 1क्षेत्र का परिचय

क्षेत्रफल क्या मापता है?

Answer

क्षेत्रफल एक समतल आकृति द्वारा कवर की गई सतह की मात्रा को मापता है। यह बिना किसी अंतराल या अतिव्याप्ति के आकृति के अंदर फिट होने वाले इकाई वर्गों की गिनती करके पाया जाता है।

Card 2Introduction to area

What does area measure?

Answer

Area measures the amount of surface covered by a plane figure. It is found by counting unit squares that fit inside the shape without gaps or overlaps.

Card 3Rectangle area

What is the area of a rectangle?

Answer

Area of a rectangle = length × width. This works because the rectangle can be counted as rows and columns of unit squares.

Card 4आयताकार क्षेत्र

आयताकार का क्षेत्रफल क्या होता है?

Answer

Area of a rectangle = length × width. This works because the rectangle can be counted as rows and columns of unit squares.

Card 5आयताकार क्षेत्र की तुलना

7 cm × 4 cm आयत का क्षेत्रफल 8 cm × 3 cm आयत से बड़ा क्यों होता है?

Answer

एक 7 cm × 4 cm आयत में 7 × 4 = 28 unit squares होता है, जबकि एक 8 cm × 3 cm आयत में 8 × 3 = 24 unit squares. Since 28 > 24 होता है, 7 cm × 4 cm आयत का क्षेत्रफल अधिक होता है।

Card 6Rectangle area comparison

Why does a 7 cm × 4 cm rectangle have a larger area than an 8 cm × 3 cm rectangle?

Answer

A 7 cm × 4 cm rectangle contains 7 × 4 = 28 unit squares, while an 8 cm × 3 cm rectangle contains 8 × 3 = 24 unit squares. Since 28 > 24, the 7 cm × 4 cm rectangle has the larger area.

Card 7Rectangle and triangles

How does a diagonal divide a rectangle?

Answer

The diagonal of a rectangle divides it into two congruent triangles. Each triangle has half the area of the rectangle.

Card 8आयताकार और त्रिभुज

एक विकर्ण आयत को कैसे विभाजित करता है?

Answer

किसी आयत का विकर्ण उसे दो सर्वांगसम त्रिभुजों में विभाजित करता है। प्रत्येक त्रिभुज का क्षेत्रफल आयत के क्षेत्रफल का आधा होता है।

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Frequently Asked Questions

What are the important topics in Area for CBSE Class 8 Mathematics?
Area covers several key topics that are frequently asked in CBSE Class 8 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Area — CBSE Class 8 Mathematics?
Understand the core concepts first, then work through the 73 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many flashcards are available for Area?
There are 60 flashcards for Area covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

Sources & Official References

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

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