how do u find the area and circumference of a circle if the radius is 2.5 ?
Area = Pi * r^2
A = 3.14 * 2.5^2
A = ?
Circumference = 2 * Pi * r
C = 2 * 3.14 * 2.5
C = ?
Ms. Sue gave you the formulas.
Did you apply the formulas?
A = 3.14 (r)^2
A = 3.14 (2.5)^2
A = 3.14 (6.25)
A = 19.625
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C = 2 (3.14)(2.5)
C = 15.7
Done!
To find the area and circumference of a circle, you can use the following formulas:
1. Area of a circle: A = π * r^2
2. Circumference of a circle: C = 2 * π * r
In this case, you have given the radius of the circle as 2.5. Let's plug this value into the formulas to find the area and circumference.
1. Area of the circle (A):
A = π * r^2
A = π * (2.5)^2
A = 3.14 * (2.5)^2
A = 3.14 * 6.25
A ≈ 19.63 square units
2. Circumference of the circle (C):
C = 2 * π * r
C = 2 * π * 2.5
C = 2 * 3.14 * 2.5
C = 6.28 * 2.5
C ≈ 15.71 units
Therefore, the area of the circle with a radius of 2.5 is approximately 19.63 square units, and the circumference is approximately 15.71 units.