find the shaded area
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10cm - 8 cm
= 2cm
the radius of the left area is 1 cm
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Answer:
9π cm²
Step-by-step explanation:
Diameter of external circle = 10 cm
Radius //////////////////////////// = 5 cm
so Area = πr² = 25π
Diameter of internal circle = 8 cm
Radius /////////////////////////// = 4 cm
so Area = πr² = 16π
Therefore Area of shaded region
25π -16π = 9π cm²
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