Question

find the area and the circumference of a circle with radius 9 yd. use the value 3.14 for π, and do not round your answers. be sure to include the correct units in your answers. area: circumference: yd yd² yd³

Explanation:

Step1: Calculate circle area

Recall area formula: $A = \pi r^2$. Substitute $\pi=3.14$, $r=9$ yd.
$A = 3.14 \times 9^2 = 3.14 \times 81 = 254.34$

Step2: Calculate circle circumference

Recall circumference formula: $C = 2\pi r$. Substitute $\pi=3.14$, $r=9$ yd.
$C = 2 \times 3.14 \times 9 = 56.52$

Answer:

Area: $254.34$ yd²
Circumference: $56.52$ yd