मराठी

In the following figure, in ΔABC, DE || BC such that AD = 2.4 cm, AB = 3.2 cm and AC = 8 cm, then what is the length of AE? - Mathematics

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प्रश्न

In the following figure, in ΔABC, DE || BC such that AD = 2.4 cm, AB = 3.2 cm and AC = 8 cm, then what is the length of AE?

बेरीज
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उत्तर

Since, DE || BC

∴ `(AD)/(DB) = (AE)/(EC)`

⇒ `2.4/(AB - AD) = (AE)/(AC - AE)`

⇒ `2.4/(3.2 - 2.4) = (AE)/(8 - AE)`

⇒ `2.4/0.8 = (AE)/(8 - AE)`

⇒ 3(8 – AE) = AE

⇒ 24 – 3AE = AE

⇒ 4AE = 24

⇒ AE = 6 cm

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2019-2020 (March) Basic - Delhi set 1
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