Question 8
If in two triangles DEF and PQR, ∠ D = ∠ Q and ∠ R = ∠ E, then which of the following is not true?
(A) EF/PR = DF/PQ (B) DE/P𝑄 = EF/RP
(C) DE/QR = DF/PQ (D) EF/RP = D𝐸/QR
Our triangles look like
∴ Δ DEF ~ Δ QRP
Now,
𝐸𝐹/𝑃𝑅=𝐷𝐹/𝑃𝑄
So, (a) is true
Also,
𝐷𝐸/𝑄𝑅=𝐷𝐹/𝑃𝑄
So, (c) is true
And,
EF/RP=𝐷𝐸/𝑄𝑅
So, (d) is true
Thus, only (b) is not true
So, the correct answer is (B)
Made by
Davneet Singh
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo
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