Question

a wheel is shaped like a circle with a diameter of 35 cm. to the nearest centimeter, what is the circumference of the wheel?

a. 70 cm
b. 55 cm
c. 110 cm
d. 220 cm

Explanation:

Identify the given values

Using the Diameter of a Circle knowledge point

$$ d = 35\text{ cm} $$

State the formula

Using the Circumference Formula knowledge point

$$ C = \pi d $$

Calculate the circumference

Using the Circumference Formula knowledge point

$$
LATEXBLOCK0
$$

Round to the nearest centimeter

Using the Circumference Formula knowledge point

$$ C \approx 110\text{ cm} $$

Answer:

• A. 70 cm
• B. 55 cm
• C. 110 cm (Correct answer)
• D. 220 cm