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P हा ABCD आयतामधील कोणताही बिंदू आहे. जर PA = 27 सेमी , PB = 21 सेमी, PC = 6 सेमी , तर लांबी PD ( सेमी मध्ये ) बरोबर आहे:

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  1. १५
  2. 10
  3. 12
  4. १८

Answer (Detailed Solution Below)

Option 4 : १८
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दिले

पीए = 27 सेमी, पीबी = 21 सेमी, पीसी = 6 सेमी

संकल्पना वापरली

PA 2 + PC 2 = PB 2 + PD 2

गणना

⇒ PA 2 + PC 2 = PB 2 + PD 2

⇒ 27 2 + 6 2 = 21 2 + PD 2

⇒ ७२९ + ३६ = ४४१ + पीडी २

⇒ PD 2 = 324

पीडी = 18 सेमी

उत्तर 18 सेमी आहे.

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-> A total of 1,08,22,423 applications have been received for the RRB Group D Exam 2025. 

-> The RRB Group D Exam Date will be announced on the official website. It is expected that the Group D Exam will be conducted in August-September 2025. 

-> The RRB Group D Admit Card 2025 will be released 4 days before the exam date.

-> The RRB Group D Recruitment 2025 Notification was released for 32438 vacancies of various level 1 posts like Assistant Pointsman, Track Maintainer (Grade-IV), Assistant, S&T, etc.

-> The minimum educational qualification for RRB Group D Recruitment (Level-1 posts) has been updated to have at least a 10th pass, ITI, or an equivalent qualification, or a NAC granted by the NCVT.

-> Check the latest RRB Group D Syllabus 2025, along with Exam Pattern.

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