Sarthaks Test
+2 votes
21.0k views
in Mathematics by (128k points)
edited by

If the arcs of the same lengths in two circles subtend angles 65°and 110° at the centre, find the ratio of their radii.

1 Answer

+3 votes
by (65.0k points)
selected by
 
Best answer

Solution: Let r1 and r2 be the radii of the two circles. Given that

Let l be the length of each of the arc. Then l = r1θ1 = r2θ2, which gives

Hence r1 : r2 = 22 : 13.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...