Q. 9

Find the degree measure of the angle subtended at the centre of a circle of diameter 60 cm by an arc of length 16.5 cm.

Answer :

Angle in radians =


θ= where θ is central angle, l=length of arc, r=radius


Now,


= and r = 0.5 x diameter


= radians


θ in degrees =


θ in minutes = 0.5 x 60 = 30’


Therefore angle subtended at the center is 31° 30’


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Unit and Measurement - 02 (Updated)45 mins
Unit and Measurement - 0358 mins
Measurement of Pressure & Dalton's Law.FREE Class
Unit and Measurement - 0653 mins
Unit and Measurement - 0467 mins
Unit and Measurement - 0567 mins
Interactive quiz on Measurement of Pressure & Dalton's Law.FREE Class
Interactive Quiz on Algae32 mins
Lecture on Algae46 mins
Interactive Quiz on Plant TissuesFREE Class
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses