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The radius of the flying disk in circle shape is $\"\"$ .

The area of the flying disk in circle shape is $\"\"$ .

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Apply square of sum formula: $\"\"$ .

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$\"\"$ . $\"\"$

The diameter of the flying disk in circle shape is $\"\"$ .

The radius of the flying disk in circle shape is $\"\"$ .

The area of the flying disk in circle shape is $\"\"$ .

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$\"\"$ .

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(a)The area of the flying disk in circle shape is $\"\"$ and

(b)The area of the flying disk in circle shape is $\"\"$ .