- A140 cm²
- B155 cm²
- C160 cm²
- D175 cm²
Show answer
Concept: For similar figures, area ratio = .
- Area ratio = .
- 9 units = 90 cm² ⇒ 1 unit = 10 cm².
- Larger area = cm².
Trick: Larger = ; it must be more than , which also removes nothing near 120.
Answer: (C) 160 cm²
अवधारणा: समरूप आकृतियों में क्षेत्रफल का अनुपात = ।
हल:
- क्षेत्रफल अनुपात = ।
- 9 इकाई = 90 cm² ⇒ 1 इकाई = 10 cm²।
- बड़ा क्षेत्रफल = cm²।
ट्रिक: बड़ा = cm² – सीधे एक लाइन में।
उत्तर: (C) 160 cm²
