∆ABC-তে, AD হল মধ্যক এবং G হল AD-এর কেন্দ্রবিন্দু যেখানে AG: GD = 2 : 1, তাহলে ar (∆BDG) : ar (∆ABC) এর মান কত?

This question was previously asked in
SSC CGL Previous Paper 53 (Held On: 10 June 2019 Shift 2)
View all SSC CGL Papers >
  1. 1 : 4
  2. 1 : 3
  3. 1 : 9
  4. 1 : 6

Answer (Detailed Solution Below)

Option 4 : 1 : 6
vigyan-express
Free
PYST 1: SSC CGL - General Awareness (Held On : 20 April 2022 Shift 2)
25 Qs. 50 Marks 10 Mins

Detailed Solution

Download Solution PDF

আমরা জানি যে,

AD মধ্যমা, তাই AD ত্রিভুজকে দুটি সমান অংশে ভাগ করে

ar ΔADB = ar ΔADC

ΔABD তে

⇒ ar ΔBDG/ar ΔBGA = DG/AG

⇒ ar ΔBDG/ar ΔBGA = 1/2

ধরা যাক, ΔBDG এর ক্ষেত্রফল = 1 একক

সুতরাং, ΔBGA এর ক্ষেত্রফল হবে = 2 একক

অতএব, ΔBAD এর ক্ষেত্রফল = ar ΔBDG + ar ΔBGA = 1 + 2 = 3 একক 

ΔABC এর ক্ষেত্রফল = 2 x ar ΔBAD = 2 x 3 = 6 একক

∴ ar ΔBDG : ar ΔABC = 1 : 6

Latest SSC CGL Updates

Last updated on Jun 13, 2025

-> The SSC CGL Notification 2025 has been released on 9th June 2025 on the official website at ssc.gov.in.

-> The SSC CGL exam registration process is now open and will continue till 4th July 2025, so candidates must fill out the SSC CGL Application Form 2025 before the deadline.

-> This year, the Staff Selection Commission (SSC) has announced approximately 14,582 vacancies for various Group B and C posts across government departments.

->  The SSC CGL Tier 1 exam is scheduled to take place from 13th to 30th August 2025.

->  Aspirants should visit ssc.gov.in 2025 regularly for updates and ensure timely submission of the CGL exam form.

-> Candidates can refer to the CGL syllabus for a better understanding of the exam structure and pattern.

-> The CGL Eligibility is a bachelor’s degree in any discipline.

-> Candidates selected through the SSC CGL exam will receive an attractive salary. Learn more about the SSC CGL Salary Structure.

-> Attempt SSC CGL Free English Mock Test and SSC CGL Current Affairs Mock Test.

-> Candidates should also use the SSC CGL previous year papers for a good revision. 

More Triangles, Congruence and Similarity Questions

Hot Links: teen patti boss teen patti app teen patti master old version teen patti real cash 2024 real teen patti