wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

In the figure alongside, OAB is a quadrant of a circle. The radius OA=3.5 cm and OD=2 cm. Calculate the area of the shaded portion. (Takeπ=227)
581551.png

Open in App
Solution

Radius of quadrant OACB,r=3.5 cm
Area of quadrant OACB=14πr2
=14×227×3.5×3.5=9.625 cm2
Here, AOD=90
Then area of ΔAOD=12× base × height$
Base =3.5 cm and height =2 cm
=12×3.5×2=3.5 cm2
Area of shaded portion = Area of quadrant Area of triangle
=9.6253.5
=6.125 cm2.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Area of a Sector
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon