Question
Download Solution PDFFrom a point Q, the length of the tangent to a circle is 20 cm and the distance of Q from the centre of the circle is 25 cm. The radius of the circle is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGIven:
From a point Q, the length of the tangent to a circle is 20 cm and the distance of Q from the centre of the circle is 25 cm.
Calculation:
Let radius is r
By Pythagoras theorem,
⇒ 252 = r2 + 202
⇒ r2 = 252 - 202
⇒ r2 = 225
⇒ r = 15
The radius of the circle is 15cm
Last updated on Jul 22, 2025
-> The IB Security Assistant Executive Notification 2025 has been released on 22nd July 2025 on the official website.
-> The SSC CGL Notification 2025 has been announced for 14,582 vacancies of various Group B and C posts across central government departments.
-> The SSC CGL Tier 1 exam is scheduled to take place from 13th to 30th August 2025 in multiple shifts.
-> In the SSC CGL 2025 Notification, vacancies for two new posts, namely, "Section Head" and "Office Superintendent" have been announced.
-> 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, with the age limit varying from post to post.
-> The SSC CGL Salary structure varies by post, with entry-level posts starting at Pay Level-4 (Rs. 25,500 to 81,100/-) and going up to Pay Level-7 (Rs. 44,900 to 1,42,400/-).
-> Attempt SSC CGL Free English Mock Test and SSC CGL Current Affairs Mock Test.