Question

Find the circumference and the area of a circle with diameter 6 yd.
Use the value 3.14 for pi, and do not round your answers. Be sure to include the correct units in your answers.

Answer 1

$c = \pi \: d = 6 \times 3.14 = 18.84 \: yd$

$radius = \frac{diameter}{2} = \frac{6}{2} = 3$

$area = \pi \: r {}^{2} = 3.14 \times 3 {}^{2} = 3.14 \times 9 = 28.26 \: yd {}^{2}$

Answer 2

Hey there!

Radius ⇒ d/2 = 6/2 = 3

Radius = 3 yd

Circumference = 2πr

⇒ 2 × 3.14 × 3

⇒18.84 yd

Area = πr²

⇒3.14 × 3²

⇒3.14 × 3 × 3

⇒28.26 yd²