Q. 84.2( 20 Votes )

In Fig. 12.30, OA

Answer :

(i) Since OACB is a quadrant, it will subtend 90° angle at O

Area of quadrant OACB = * r2


= * * (3.5)2


= * * ()2


=


= cm2


(ii) Area of ΔOBD = * OB * OD


= * 3.5 * 2


= * * 2


= cm2


Area of the shaded region = Area of quadrant OACB - Area of ΔOBD


= -


=


= cm2

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
How to Revise ChemistryHow to Revise ChemistryHow to Revise Chemistry45 mins
Nelson Mandela : Long Walk to FreedomNelson Mandela : Long Walk to FreedomNelson Mandela : Long Walk to Freedom42 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
caricature
view all courses