Ex 6.3, 1 (iv) & (v) - Ex 6.3, 1 (iv)
State which pairs of triangles in figure are similar. Write the similarity criterion - SAS Similarity

  1. Chapter 6 Class 10 Triangles
  2. Concept wise

Transcript

Ex 6.3, 1 (iv) State which pairs of triangles in figure are similar. Write the similarity criterion used by you for answering the question and also write the pairs of similar triangles in the symbolic form In βˆ† 𝑀𝑁𝐿 and βˆ†π‘„π‘ƒπ‘… βˆ π‘€ = βˆ π‘„ =70Β° Also, 𝑀𝑁/𝑄𝑃=2.5/5 = 25/(5 Γ—10)=1/2 𝑀𝐿/𝑄𝑅=5/10=1/2 So, 𝑀𝑁/𝑃𝑄=𝑀𝐿/𝑄𝑅=1/2 Hence, by SAS similarity criterion for two triangles βˆ† π‘€π‘πΏβˆΌβˆ†π‘„π‘ƒπ‘… Ex 6.3, 1(v) State which pairs of triangles in figure are similar. Write the similarity criterion used by you for answering the question and also write the pairs of similar triangles in the symbolic form In βˆ† 𝐴𝐢𝐡 and βˆ† 𝐹𝐷𝐸 ∠ A = ∠ F = 80Β° 𝐴𝐡/𝐹𝐷=2.5/5 = 25/(5 Γ—10) =1/2 𝐴𝐢/𝐹𝐸=𝐴𝐢/6 AC is not given So, 𝐴𝐡/𝐷𝐹 β‰  𝐴𝐢/𝐸𝐹 So , βˆ† 𝐴𝐢𝐡 and βˆ† 𝐹𝐷𝐸 are not similar .

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.