Ex 12.2

Ex 12.2, 1

Ex 12.2, 2

Ex 12.2, 3 Important

Ex 12.2, 4 Deleted for CBSE Board 2022 Exams

Ex 12.2, 5 Important Deleted for CBSE Board 2022 Exams

Ex 12.2, 6 Deleted for CBSE Board 2022 Exams

Ex 12.2, 7 Important Deleted for CBSE Board 2022 Exams

Ex 12.2, 8 Important

Ex 12.2, 9

Ex 12.2, 10

Ex 12.2, 11 Important

Ex 12.2, 12

Ex 12.2, 13 Important Deleted for CBSE Board 2022 Exams

Ex 12.2, 14 (MCQ) You are here

Last updated at Aug. 11, 2021 by Teachoo

Ex 12.2, 14 Tick the correct answer in the following : Area of a sector of angle p (in degrees) of a circle with radius R is (A) /180 2 R (B) /180 R2 (C) /360 2 R (D) /720 2 R2 Area of a sector = /360 2 Where = angle , r = radius of circle Here, we have = p and radius = R Putting these values in formula Area of sector = /360 2 = /360 2 But , these is no such option which is matching with answers So, multiply 2 in numerator and denominator Area of sector = /360 R2 2/2 = /720 2 R2 Hence, option (D) is correct