Question
Download Solution PDFTwo equal circles of radius 18 cm intersect each other, such that each passes through the centre of the other. The length of the common chord is _________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
The radius of the circles is 18 cm
Calculation:
According to the diagram,
AD = DB
O1O2 = 18
Again O1A = O2A = 18 [Radius of the circle]
∠ADO1 = 90°
O1D = O2D = 9
AD = √(324 - 81)
⇒ (9√3)
AB = 2 × (9√3) = 18√3 = 6√27
∴ The length of the common chord is 6√27 cm.
Last updated on Jul 15, 2025
-> 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.
-> The UP LT Grade Teacher 2025 Notification has been released for 7466 vacancies.