भुजा (2x+3) वाले वर्ग में (x) वाले दोनों आयतों का संयुक्त क्षेत्रफल कितना होगा?
In a square of side (2x+3), what is the combined area of the two (x)-rectangles?
Explanation opens after your attempt
C. (12x)
Concept
The sum of the two rectangles is \(2\cdot 2x\cdot 3=12x\). Exam tip: treat (2x) as one complete part.
Why this answer is correct
The correct answer is C. (12x). The sum of the two rectangles is \(2\cdot 2x\cdot 3=12x\). Exam tip: treat (2x) as one complete part.
Exam Tip
दोनों आयतों का योग \(2\cdot 2x\cdot 3=12x\) है। परीक्षा में (2x) को एक पूरा भाग मानें।
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