O is the centre of the circle and points P and R are on the circle. Quadrilateral OPQR is a rhombus with side 18cm. RS is perpendicular to OP and angle POR=30°. Find the area of the shaded region
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Answer:77.22
Step-by-step explanation:
Area of rhombus = heigh × side
=SR = 18 sin theta
=18×1/2
Area=18/2 ×18
Area=162
Sector = theta / 360 × pi r^2
Putting values
Area of secor = 84.78
Area of shaded region = area of rhombus- area of sector
=162-84.78
=77.22
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