Asked by Nandhini
Find the area of the shaded part (the two diagrams are circular sectors) given that central angle is 60 degrees and the bigger radius 7cm, width of the shaded portion is 2cm.
Answers
Answered by
bobpursley
what do you mean width...the difference in radai?
if so, then take the area of the larger circle sector (area sector=PI*r^2*angle/360 )
minus the area of the sector of the smaller radius.
overall, you ought to have this
area shaded=PI*60/360 (9^2-7^2) IF I understand the figure.
if so, then take the area of the larger circle sector (area sector=PI*r^2*angle/360 )
minus the area of the sector of the smaller radius.
overall, you ought to have this
area shaded=PI*60/360 (9^2-7^2) IF I understand the figure.
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