2 years ago

a circle with radius of 9cm sits inside a circle with radius of 11cm. what is the area of the shaded region?

1 answer:

3 0

Answer:

125.6 cm²

Step-by-step explanation:

Area inside the bigger circle but outside the smaller circle:

3.14 × (11² - 9²)

3.14 × 40

125.6 cm²

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