In the given figure, AD = 2cm, BD = 3 cm, AE = 3.5 cm and AC = 7 cm. Is DE parallel to BC ?
Last updated at Oct. 23, 2020 by Teachoo
Transcript
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, ๐จ๐ซ/๐ซ๐ฉ=๐/๐ ๐จ๐ฌ/๐ฌ๐ช= ๐ด๐ธ/(๐ด๐ถ โ ๐ด๐ธ) =3.5/(7 โ 3.5) =3.5/3.5=๐ Since ๐จ๐ซ/๐ซ๐ฉ โ ๐จ๐ฌ/๐ฌ๐ช โด Ratio of the two sides is not same, So, we cannot use Basic Proportionality Theorem โด DE is not parallel to BC
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