Question

the students in mrs. hollands preschool class sit down in a circle for music time. the circle they form has a diameter of 4 meters. what is the circles circumference? if necessary, round your answer to the nearest hundredth. meters

Explanation:

Step1: Recall circumference formula

The formula for the circumference of a circle using diameter is $C = \pi d$, where $d$ is the diameter.

Step2: Substitute given diameter

Substitute $d = 4$ meters into the formula:
$C = \pi \times 4$

Step3: Calculate and round

Use $\pi \approx 3.1416$, so $C \approx 4 \times 3.1416 = 12.5664$. Round to the nearest hundredth: $12.57$.

Answer:

12.57 meters