If in triangles ABC and DEF, AB/DE = BC/FD  , then they will be similar, when

(A) ∠ B = ∠ E  

(B) ∠ A = ∠ D

(C) ∠ B = ∠ D  

(D) ∠ A = ∠ F

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  1. Chapter 6 Class 10 Triangles (Term 1)
  2. Serial order wise

Transcript

Question 12 If in triangles ABC and DEF, AB/DE = BC/FD , then they will be similar, when (A) ∠ B = ∠ E (B) ∠ A = ∠ D (C) ∠ B = ∠ D (D) ∠ A = ∠ F Our triangles look like Since 𝑨𝑩/𝑫𝑬 = 𝑩𝑪/𝑭𝑫 They will be similar if the middle angle is equal ∴ If ∠ B = ∠ D, only then will the triangles be equal So, correct answer is (C)

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.