भुजा (a+b+c) वाले वर्ग को दृश्य मॉडल में बांटने पर कौन-सा क्षेत्रफल विस्तार सही है?
When a square of side (a+b+c) is partitioned in a visual model, which area expansion is correct?
Explanation opens after your attempt
Correct Answer
B. \(a^2+b^2+c^2+2ab+2bc+2ca\)complete partition
Concept
Three squares and six rectangles make \(a^2+b^2+c^2+2ab+2bc+2ca\). In exams count each pair of rectangles.
Why this answer is correct
The correct answer is B. \(a^2+b^2+c^2+2ab+2bc+2ca\) / complete partition. Three squares and six rectangles make \(a^2+b^2+c^2+2ab+2bc+2ca\). In exams count each pair of rectangles.
Exam Tip
तीन वर्ग और छह आयत मिलकर \(a^2+b^2+c^2+2ab+2bc+2ca\) बनाते हैं। परीक्षा में हर आयत की जोड़ी गिनें।
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