What is the circumference of a circle with a diameter of 2 inches? Estimate the circumference to the hundredth place using 3.14 for π
.(1 point)
Responses
6.28 inches
6.28 inches
6 inches
6 inches
0.64 inches
0.64 inches
1.57 inches
The circumference of a circle with a diameter of 2 inches can be calculated using the formula C = πd, where C is the circumference and d is the diameter.
Plugging in the values, we get:
C = 3.14 * 2
C = 6.28
The estimated circumference to the hundredth place using 3.14 for π is 6.28 inches.
To calculate the circumference of a circle, you can use the formula C = πd, where C is the circumference and d is the diameter of the circle.
Given that the diameter is 2 inches and using the approximation of π as 3.14, we can substitute the values into the formula:
C = 3.14 * 2
C = 6.28
Therefore, the circumference of a circle with a diameter of 2 inches is approximately 6.28 inches.
To find the circumference of a circle, you can use the formula:
Circumference = π × Diameter
Given that the diameter is 2 inches and we are using an estimate of π as 3.14, we can calculate the circumference as follows:
Circumference = 3.14 × 2
Circumference ≈ 6.28 inches
Therefore, the correct answer is 6.28 inches.
What is the circumference of a circle with a radius of 3 cm? Round your answer to the nearest hundredths.
To find the circumference of a circle with a radius, you can use the formula:
Circumference = 2π × Radius
Given that the radius is 3 cm and rounding the answer to the nearest hundredths, we can calculate the circumference as follows:
Circumference = 2 * 3.14 * 3
Circumference ≈ 18.84 cm
Therefore, the circumference of a circle with a radius of 3 cm, rounded to the nearest hundredths, is approximately 18.84 cm.
What is the area of a circle with a diameter of 10 inches? Use 3.14 for pi. Enter an exact answer.(1 point)
The formula for the area of a circle is given by:
Area = π * (radius)^2
Since the diameter is given as 10 inches, the radius can be calculated by dividing the diameter by 2:
Radius = 10 / 2 = 5 inches
Now we can substitute the value of the radius into the formula to find the area:
Area = 3.14 * (5)^2
Area = 3.14 * 25
Area = 78.5 square inches
Therefore, the exact area of a circle with a diameter of 10 inches is 78.5 square inches.
What is the area of a circle with a radius of 2.5 m? Round your answer to the nearest tenth.(1 point)
The formula for the area of a circle is given by:
Area = π * (radius)^2
Given that the radius is 2.5 m, we can calculate the area as follows:
Area = 3.14 * (2.5)^2
Area ≈ 19.625 square meters
Rounding the answer to the nearest tenth, the area of a circle with a radius of 2.5 m is approximately 19.6 square meters.