what is the approximate circumference of the circle shown below?

a. 56.52 cm
b. 38.74 cm
c. 28.26 cm
d. 62.38 cm

Question

what is the approximate circumference of the circle shown below?

a. 56.52 cm
b. 38.74 cm
c. 28.26 cm
d. 62.38 cm

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "tutor", "mastery_adaptive_brevity" ], "needs_drawing": true, "concepts_used": [ "Radius of a Circle", "Circumference Formula" ], "new_concepts": [], "current_concepts": [ "Radius of a Circle", "Circumference Formula" ] } ## Identify the given radius Using the *Radius of a Circle* knowledge point $$ r = 9\text{ cm} $$ ## Apply the circumference formula Using the *Circumference Formula* knowledge point $$ C = 2\pi r $$ ## Calculate the approximate value Using the *Circumference Formula* knowledge point $$ \begin{aligned} C &\approx 2 \times 3.14 \times 9\ C &\approx 56.52\text{ cm} \end{aligned} $$

(A) 56.52 cm

(B) 38.74 cm

(C) 28.26 cm

(D) 62.38 cm

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QUESTION IMAGE

Question

Explanation:

Identify the given radius

Apply the circumference formula

Calculate the approximate value

Answer: