Question

two semicircle drawn in a square if we put dot in the fig withowt looking into it what is the probabilities of being the shaded region​

Answer 1

Answer:

nice so beautiful picture

Answer 2

Area of the shaded region = Area of circle with center at O - Area of semicircle with center at O-Area of smaller semicircle with radius r ′ -Area of smaller semicircle with radius r ′

here r=28/2=14

r'=r/2

• r'=14/2
• r'=7

area of the shaded region= πr²-πr²/2-πr'²/2-πr'²/2

=πr²/2-πr'²

=π × 14²/2- π 7²

=22×14×14/2×7- 22×7×7/7

=22×7

154cm²

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