$\"\"$

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The given diameter of the circle is $\"\"$ yd.

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Since radius is one half of the diameter. So, $\"\"$ . $\"\"$ Circumference of a circle is $\"\"$ .

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$\"\"$ (Write the formula)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Simplify)

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$\"\"$ ( $\"\"$ ) $\"\"$

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Area of a circle is $\"\"$ .

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$\"\"$ (Write the formula)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Simplify)

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$\"\"$ ( $\"\"$ ) $\"\"$

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The circumference and area of the circle are 21 and 35 respectively.