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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 Oct. 23, 2020 by

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

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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/πŸ‘ 𝑨𝑬/𝑬π‘ͺ= 𝐴𝐸/(𝐴𝐢 βˆ’ 𝐴𝐸) =3.5/(7 βˆ’ 3.5) =3.5/3.5=𝟏 Since 𝑨𝑫/𝑫𝑩 β‰  𝑨𝑬/𝑬π‘ͺ ∴ 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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