भुजा (2a+3) वाले वर्ग के क्षेत्र मॉडल में दो आयतों का कुल क्षेत्रफल क्या है?
In the area model of a square with side (2a+3), what is the total area of the two rectangles?
Explanation opens after your attempt
B. (12a)
Concept
The total area of the two rectangles is \(2\cdot2a\cdot3=12a\). Exam tip: take the side along with its coefficient.
Why this answer is correct
The correct answer is B. (12a). The total area of the two rectangles is \(2\cdot2a\cdot3=12a\). Exam tip: take the side along with its coefficient.
Exam Tip
दो आयतों का कुल क्षेत्रफल \(2\cdot2a\cdot3=12a\) है। परीक्षा में गुणांक सहित भुजा लें।
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