what is the area of a circle with a radius of 7 cm? (use 3.14 for $\pi$ and round to the nearest tenth.)

$38.5\text{ cm}^2$
$44.0\text{ cm}^2$
$150.0\text{ cm}^2$
$153.9\text{ cm}^2$

Question

what is the area of a circle with a radius of 7 cm? (use 3.14 for $\pi$ and round to the nearest tenth.)

$38.5\text{ cm}^2$
$44.0\text{ cm}^2$
$150.0\text{ cm}^2$
$153.9\text{ cm}^2$

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Area of a Circle" ], "new_concepts": [], "current_concepts": [ "Area of a Circle" ] } ## State the given values and formula $$ r = 7\text{ cm},\quad \pi \approx 3.14,\quad A = \pi r^2 $$ ## Calculate the area $$ A \approx 3.14 \times 7^2 = 3.14 \times 49 = 153.86\text{ cm}^2 $$ ## Round to the nearest tenth $$ A \approx 153.9\text{ cm}^2 $$

(A) $38.5\text{ cm}^2$

(B) $44.0\text{ cm}^2$

(C) $150.0\text{ cm}^2$

(D) $153.9\text{ cm}^2$

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Geometry", "Area of a Circle" ] }

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

State the given values and formula

Calculate the area

Round to the nearest tenth

Answer: