17. In the given figure, OACB is a quadrant of a circle with centre O and radius 3-5 cm. If OD = 2 cm fina
the area of the shaded region.
50 marks question.. Hurry one who will give answer 1st marks will mark as brainliest .
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Step-by-step explanation:
Since OACB is a quadrant, it will subtend 90° angle at O. Area of quadrant OACB = 90o/360o x πr2 (ii) Area of ΔOBD = 1/2 OB x OD = 1/2 x 3.5 x 2
= 7/2 Area of the shaded region = Area of quadrant OACB − Area of ΔOBD
77/8-7/2
77-28/8
49/8cm ^2
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