भुजा (2a+b) वाले वर्ग का दृश्य मॉडल बनाया गया। दो समान आयतों का कुल क्षेत्रफल क्या होगा?
A visual model is made for a square of side (2a+b). What will be the combined area of the two equal rectangles?
Explanation opens after your attempt
B. (4ab)
Concept
Each rectangle is (2a) by (b), so the total is (4ab). Exam tip: handle the changed side (2a) carefully.
Why this answer is correct
The correct answer is B. (4ab). Each rectangle is (2a) by (b), so the total is (4ab). Exam tip: handle the changed side (2a) carefully.
Exam Tip
प्रत्येक आयत (2a) by (b) है इसलिए कुल (4ab) होगा। परीक्षा में बदली हुई भुजा (2a) को ध्यान से लें।
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