Final answer:
The circumference of the circle is 56.52 yd and the area of the circle is 254.34 yd².
Step-by-step explanation:
To find the circumference of a circle with a radius of 9 yd, we use the formula C = 2πr. Substituting the value of the radius, we have C = 2 × 3.14 × 9 = 56.52 yd. Therefore, the circumference of the circle is 56.52 yd.
To find the area of a circle, we use the formula A = πr². Substituting the value of the radius, we have A = 3.14 × 9² = 254.34 yd². Therefore, the area of the circle is 254.34 yd².