यदि \(13^2\) को \((10+3)^2\) के दृश्य मॉडल से समझें तो \(2ab\) वाला भाग कितना होगा?
If \(13^2\) is understood using the visual model of \((10+3)^2\), what is the \(2ab\) part?
Explanation opens after your attempt
B. \(60\)
Concept
Here \(2ab=2 \times 10 \times 3=60\). Exam tip: the middle part comes from two equal rectangles.
Why this answer is correct
The correct answer is B. \(60\). Here \(2ab=2 \times 10 \times 3=60\). Exam tip: the middle part comes from two equal rectangles.
Exam Tip
यहां \(2ab=2 \times 10 \times 3=60\) है। परीक्षा में मध्य भाग दो बराबर आयतों से आता है।
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