Q. 73.8( 20 Votes )

AB and CD are respectively arcs of two concentric circles of radii 21 cm. and 7 cm. with centre O (See figure). If AOB = 30°, find the area of the shaded region.

(use π = 22/7)

Answer :

Area of shaded region = Area(Sector OAB)-Area(Sector OCD)

= 102.67 cm2

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Quiz | A Letter to God39 mins
A Letter to God45 mins
A Letter to God50 mins
Champ Quiz | Area Related with the Circle45 mins
How to build a strong Vocabulary?53 mins
Time-Management: A key to Success37 mins
Lets Make a Timetable and Crack NTSE43 mins
Formulas- Not a Name of a Car48 mins
Cancer- A Deadly Disease!38 mins
Working of a Neuron39 mins
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