CBSE Class 10 Sample Paper for 2021 Boards - Maths Basic

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Question 7 (Choice - 2) - CBSE Class 10 Sample Paper for 2021 Boards - Maths Basic - Solutions of Sample Papers for Class 10 Boards

Last updated at Dec. 16, 2024 by

In the given figure, AD = 2cm, BD = 3 cm, AE = 3.5 cm and AC = 7 cm. Is DE parallel to BC ?

 

In figure, AD = 2cm, BD = 3 cm, AE = 3.5 cm, AC = 7 cm. Is DE parallel

 

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Question 7 (Choice - 2) In the given figure, AD = 2cm, BD = 3 cm, AE = 3.5 cm and AC = 7 cm. Is DE parallel to BC ? Here, 𝑨𝑫/𝑫𝑩=𝟐/𝟑 𝑨𝑬/𝑬𝑪= 𝐴𝐸/(𝐴𝐶 − 𝐴𝐸) =3.5/(7 − 3.5) =3.5/3.5=𝟏 Since 𝑨𝑫/𝑫𝑩 ≠ 𝑨𝑬/𝑬𝑪 ∴ Ratio of the two sides is not same, So, we cannot use Basic Proportionality Theorem ∴ DE is not parallel to BC

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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