A circle has an area of 24.64 Sq.m. What is its circumference________?
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Answer: C. 17.60m
Explanation
Dividing the given area by pi and taking the square root determines the correct circular radius. Multiplying two by pi and the calculated radius yields the exact circular circumference measurement. The resulting circumference value matches seventeen point sixty meters when computed with standard mathematical constants. The area of a circle is calculated using the standard mathematical formula pi multiplied by radius squared. The circumference of any circle equals two multiplied by pi and its radius length. Mathematical constants like pi are approximated using standard decimal values during practical geometric calculations.
Circular measurements are essential in civil engineering when designing curved roadways and circular foundations. Calculating perimeters and areas helps determine fencing requirements for circular agricultural enclosures and gardens. Manufacturing processes rely on accurate geometric dimensions to cut circular materials with minimal waste. Option a uses incorrect units and an erroneous calculation derived from the initial area value. Option b results from a minor rounding or calculation error during the intermediate radius extraction step. Option d overestimates the correct circumference due to an improper application of the circle formulas.
- Subject
- Mathematics
- Category
- Mathematics
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- —
- Difficulty
- medium
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