Last updated at April 10, 2019 by Teachoo

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 β πππΏ and βπππ β π = β π =70Β° Also, ππ/ππ=2.5/5 = 25/(5 Γ10)=1/2 ππΏ/ππ =5/10=1/2 So, ππ/ππ=ππΏ/ππ =1/2 Hence, by SAS similarity criterion for two triangles β πππΏβΌβπππ 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 β π΄πΆπ΅ and β πΉπ·πΈ β A = β F = 80Β° π΄π΅/πΉπ·=2.5/5 = 25/(5 Γ10) =1/2 π΄πΆ/πΉπΈ=π΄πΆ/6 AC is not given So, π΄π΅/π·πΉ β π΄πΆ/πΈπΉ So , β π΄πΆπ΅ and β πΉπ·πΈ are not similar .

About the Author

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.