Question

Pie plates can be measured by the length of their radius. what size pie plate is needed for a pie with a circumference of about 150.72 cm?

Answer 1

Answer:

24 cm

Step-by-step explanation:

Substitute into the formula for the circumference of a circle:

$C =2 \pi r$

$150.72 = 2\pi r$

Divide by 2 on both sides:

$150.72 = 2\pi r$

/2           /2

$75.36=\pi r$

Divide by pi on both sides:

$75.36=\pi r$

/pi        /pi

24 = r

Therefore, the radius is 24 cm.