Question

Area
Related
to circles
Two concentric circles of radii 21cm and 7cm are drawn as
shown
oon en figure. If AOB = 30 find the area of shaded region ani
the perimeter of A B C D
.. A B C D
is
a square
in which
two semicircles
are drawn a​

Answer 1

Answer:

Refer attachment @brainly

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