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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CBSE Class 10 Sample Paper for 2021 Boards - Maths Basic
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CBSE Class 10 Sample Paper for 2021 Boards - Maths Basic
Last updated at Oct. 23, 2020 by Teachoo
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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, π¨π«/π«π©=π/π π¨π¬/π¬πͺ= π΄πΈ/(π΄πΆ β π΄πΈ) =3.5/(7 β 3.5) =3.5/3.5=π Since π¨π«/π«π© β π¨π¬/π¬πͺ β΄ Ratio of the two sides is not same, So, we cannot use Basic Proportionality Theorem β΄ DE is not parallel to BC