Final answer:
To find the area and circumference of a circle with a radius of 8 meters, use the formulas A = πr² and C = 2πr with pi approximated as 3.14, yielding an area of 200 m² and a circumference of 50 m.
Step-by-step explanation:
Finding the Area and Circumference of a Circle
To calculate the area of a circular pond with a radius of 8 meters using 3.14 for pi, the formula is A = πr², which in this case is A = (3.14)×(8 m)². It is important to match the number of significant figures from the given radius to the final answer. Using those values, the calculated area is A = (3.14)×(64 m²) = 201.06 m². However, since the radius was given to two significant figures, the area should be reported as 200 m².
The circumference is found using the formula C = 2πr, meaning C = 2×(3.14)×(8 m) = 50.24 m. Again, considering significant figures, the circumference is 50 m.
Remember, when calculating these measurements, consistency in the level of precision is just as important as the numerical calculations themselves.