A circular fountain has radius 7 m. Using , what is the area of its surface?
Answer and explanation
Correct answer: D. 154 m ( with )
- Step 1: Area of a circle: . Step 2. m. **Answer: 154 m. Why not the others:** 44 m is the circumference, 308 uses 14 m as the radius, and 49 forgets to multiply by .
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