Q71

Question:

If ΔABC is similar to ΔDEF with BC = 8 cm and EF = 4 cm, find the ratio of their areas.

यदि ΔABC, ΔDEF के समरूप है और BC=8 cm, EF=4 cm है, तो उनके क्षेत्रफलों का अनुपात क्या होगा?

Options:

  • a) 2:1
  • b) 4:1
  • c) 8:1
  • d) 16:1
  • a) 2:1
  • b) 4:1
  • c) 8:1
  • d) 16:1

correct answer : b)

Explanation:

Ratio of areas = (BC/EF)² = (8/4)² = 4. So ratio = 4:1.

क्षेत्रफल अनुपात = (भुजाओं का अनुपात)² = (8/4)² = 4। अनुपात = 4:1।

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