एका समलंब चौकोनाचे क्षेत्रफळ 18 चौरस सेमी आहे. त्याची उंची आणि पाया अनुक्रमे 3 सेमी आणि 5 सेमी आहेत. तर पायाच्या समांतर बाजूची लांबी काढा.

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  1. 4 सेमी
  2. 6 सेमी
  3. 8 सेमी
  4. 7 सेमी

Answer (Detailed Solution Below)

Option 4 : 7 सेमी
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Detailed Solution

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आपल्याला माहित आहे की, समलंब चौकोनाचे क्षेत्रफळ = 1/2 × उंची × (a + b)

येथे, a = पायाच्या समांतर बाजूची लांबी

b = पाया

⇒ 18 चौरस सेमी = 1/2 × 3 × (a + 5)

⇒ 36 = 3a + 15

⇒ 21 = 3a

⇒ a = 21/3 = 7 सेमी

∴ पायाच्या समांतर बाजूची लांबी 7 सेमी आहे.
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