मराठी

A line PQ is drawn parallel to the side BC of ΔABC which cuts side AB at P and side AC at Q. If AB = 9.0 cm, CA = 6.0 cm and AQ = 4.2 cm, find the length of AP.

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प्रश्न

A line PQ is drawn parallel to the side BC of ΔABC which cuts side AB at P and side AC at Q. If AB = 9.0 cm, CA = 6.0 cm and AQ = 4.2 cm, find the length of AP.

बेरीज
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उत्तर


In ΔAPQ and ΔABC,

∠APQ = ∠ABC  ...(Since PQ || BC, so the angles are corresponding angles)

∠PAQ = ∠BAC   ...(Common angle)

ΔAPQ ∼ ΔABC  ...(AA criterion for similarity)

`=> (AP)/(AB) = (AQ)/(AC)`

`=> (AP)/9 = 4.2/6`

`=> AP = (4.2 xx 9)/6`

`=>` AP = 6.3 cm

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पाठ 15: Similarity (With Applications to Maps and Models) - Exercise 15 (B) [पृष्ठ २१८]

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सेलिना Concise Mathematics [English] Class 10 ICSE
पाठ 15 Similarity (With Applications to Maps and Models)
Exercise 15 (B) | Q 3. | पृष्ठ २१८
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