plz find the area of the shaded region
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plz find the area of the shaded region
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answer:-1/3 of the shaded region
Answer:SEMI CIRCLE(AB)
AB =diameter=28cm
radius =diameter/2
=28/2=14 cm
area of semi circle(AB)=1/2r²
= 1/2×22/7×14×14
= 22×7×2
= 308cm²
semi circle(AO) & (OB) both are same
radius = 7 cm
area of semi circle= 1/2 r²
= 1/2×22/7×7×7
= 77 cm²
area of two semi circle = 77×2=154cm²
area of shaded part = area of semi circle(AB) - area of semi circle(AO andOB)
=308 cm²-154 cm² =154 cm²
Hence, area of shaded part is 154cm²
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