एक आयत की लंबाई (r+6) और चौड़ाई (r+2) है। क्षेत्रफल मॉडल से कौन-सा विस्तार मिलता है?

A rectangle has length (r+6) and breadth (r+2). Which expansion is obtained from the area model?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. \( r^2+8r+12 \)

Step 1

Concept

The rectangle parts are \(r^2\), (6r), (2r) and (12). In exams, combine (6r+2r) as (8r).

Step 2

Why this answer is correct

The correct answer is A. \( r^2+8r+12 \). The rectangle parts are \(r^2\), (6r), (2r) and (12). In exams, combine (6r+2r) as (8r).

Step 3

Exam Tip

आयत के भाग \(r^2\), (6r), (2r) और (12) हैं। परीक्षा में (6r+2r) को (8r) करें।

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Mathematics Answer, Explanation and Revision Hints

एक आयत की लंबाई (r+6) और चौड़ाई (r+2) है। क्षेत्रफल मॉडल से कौन-सा विस्तार मिलता है? / A rectangle has length (r+6) and breadth (r+2). Which expansion is obtained from the area model?

Correct Answer: A. \( r^2+8r+12 \). Explanation: आयत के भाग \(r^2\), (6r), (2r) और (12) हैं। परीक्षा में (6r+2r) को (8r) करें। / The rectangle parts are \(r^2\), (6r), (2r) and (12). In exams, combine (6r+2r) as (8r).

Which concept should I revise for this Mathematics MCQ?

The rectangle parts are \(r^2\), (6r), (2r) and (12). In exams, combine (6r+2r) as (8r).

What exam hint can help solve this Mathematics question?

आयत के भाग \(r^2\), (6r), (2r) और (12) हैं। परीक्षा में (6r+2r) को (8r) करें।