Question

In the fig. AB and CD are two perpendicular diameters of a circle with centre O. If OA=7cm, find the area of shaded region.

Answer 1

Answer:66.5

Step-by-step explanation:

First find the area of the smaller circle and triangle.

If OA is 7cm, then OB=14cm and OC=OD=7cm. The radius of the smaller circle is 7/2cm.

Area of smaller circle+area of triangle =πr²+1/2×b×h

=22/7×7/2×7/2+1/2×14×7

=49+77/2

=87.5cm²

Now, the area of shaded region=are of larger circle- sum of area of tri. And sm. Circle

=πr²-87.5

=22/7×7×7-87.5

=154-87.5

=66.5cm² ans.

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Answer 2

Answer:

hope this helps u mate.....

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