area and the circumference of the circle. Round your answers to the nearest hundredth.
The formula is: r x 2 x 3.14 = circumference.
The answer is 18.84 your formula for getting that is radius x 2 x 3.14(or pie) then that gives you your answer
To find the area and circumference of a circle, you need to know the value of its radius or diameter. Which one do you have?
To find the area and circumference of a circle, you need to know either the radius (distance from the center of the circle to any point on its edge) or the diameter (distance across the circle passing through its center).
1. If you have the radius:
- The formula for the area of a circle is: A = π * r^2, where A is the area and r is the radius.
- The formula for the circumference of a circle is: C = 2 * π * r, where C is the circumference and r is the radius.
2. If you have the diameter:
- To find the radius from the diameter, divide the diameter by 2: r = d/2, where d is the diameter.
- Then, you can use the formulas above to calculate the area and circumference.
Keep in mind that π (pi) is a mathematical constant that represents the ratio of a circle's circumference to its diameter. It is approximately equal to 3.14159, but you can use a calculator or look up a more precise value if needed.
Once you have the radius or diameter, plug it into the respective formula and calculate the area and circumference. Finally, round your answers to the nearest hundredth, which means keeping two decimal places.