The circumference of a circle can be found using the formula C = πd, where C is the circumference and d is the diameter. Given that the diameter is 4 feet, the circumference is C = π(4) = 4π feet.
To estimate the circumference, we can use the approximation π ≈ 3.14. So, the best estimation for the circumference would be 4π ≈ 4(3.14) ≈ 12.56 feet.
What is the circumference of a circle with a diameter = 4 feet? Which of the following is the best estimation for the circumference?
13 answers
What is the circumference of a circle with a diameter = 4 feet? Which of the following is the best estimation for the circumference
A. 13
B. 6
C. 25
D. 50
A. 13
B. 6
C. 25
D. 50
The circumference of a circle with a diameter of 4 feet can be found using the formula C = πd, where C is the circumference and d is the diameter.
Substituting the diameter of 4 feet into the formula, we have C = π * 4 feet.
To estimate the value of π, we can use the approximation of 3.14.
C ≈ 3.14 * 4 feet
C ≈ 12.56 feet
So the circumference of the circle is approximately 12.56 feet.
Among the given options:
A. 13: This is close to the actual circumference, but slightly larger.
B. 6: This significantly underestimates the circumference.
C. 25: This greatly overestimates the circumference.
D. 50: This overestimates the circumference to a larger extent.
Based on these estimations, the best estimation for the circumference among the given options is A. 13, but it is slightly larger than the actual value.
Substituting the diameter of 4 feet into the formula, we have C = π * 4 feet.
To estimate the value of π, we can use the approximation of 3.14.
C ≈ 3.14 * 4 feet
C ≈ 12.56 feet
So the circumference of the circle is approximately 12.56 feet.
Among the given options:
A. 13: This is close to the actual circumference, but slightly larger.
B. 6: This significantly underestimates the circumference.
C. 25: This greatly overestimates the circumference.
D. 50: This overestimates the circumference to a larger extent.
Based on these estimations, the best estimation for the circumference among the given options is A. 13, but it is slightly larger than the actual value.
What is the area of a circle with a radius of 12 feet? Estimate the area to the hundredths place using 3.14 for π
A. 10.2
B. 10.22
C. 33.18
D. 10.21
A. 10.2
B. 10.22
C. 33.18
D. 10.21
The area of a circle can be calculated using the formula A = πr^2, where A represents the area and r represents the radius.
Given that the radius is 12 feet, we can substitute it into the formula:
A = 3.14 * (12 feet)^2
A = 3.14 * 144 square feet
A = 452.16 square feet
Therefore, the exact area of the circle with a radius of 12 feet is 452.16 square feet.
To estimate the area to the hundredths place using 3.14 for π, we round the value to the nearest hundredth:
A ≈ 452.16 square feet ≈ 452.16
Among the given options:
A. 10.2: This greatly underestimates the area.
B. 10.22: This greatly underestimates the area.
C. 33.18: This greatly underestimates the area.
D. 10.21: This greatly underestimates the area.
Based on the estimations, none of the given options match the estimated area of approximately 452.16.
Given that the radius is 12 feet, we can substitute it into the formula:
A = 3.14 * (12 feet)^2
A = 3.14 * 144 square feet
A = 452.16 square feet
Therefore, the exact area of the circle with a radius of 12 feet is 452.16 square feet.
To estimate the area to the hundredths place using 3.14 for π, we round the value to the nearest hundredth:
A ≈ 452.16 square feet ≈ 452.16
Among the given options:
A. 10.2: This greatly underestimates the area.
B. 10.22: This greatly underestimates the area.
C. 33.18: This greatly underestimates the area.
D. 10.21: This greatly underestimates the area.
Based on the estimations, none of the given options match the estimated area of approximately 452.16.
yes they are pick an option
Apologies for the confusion. Among the given options, the closest estimation to the area of the circle with a radius of 12 feet is:
C. 33.18
While this option is still an underestimation of the actual area, it is the closest option provided.
C. 33.18
While this option is still an underestimation of the actual area, it is the closest option provided.
What is the area of a circle with a radius of 2.5 feet? Estimate the area to the tenths place using 3.14 for π
A. 15.7 feet
B. 16 feet
C. 7.85 feet
D. 15.6 feet
A. 15.7 feet
B. 16 feet
C. 7.85 feet
D. 15.6 feet
The area of a circle can be found using the formula A = πr^2, where A represents the area and r represents the radius.
Given that the radius is 2.5 feet, we can substitute it into the formula:
A = 3.14 * (2.5 feet)^2
A = 3.14 * 6.25 square feet
A = 19.625 square feet
Therefore, the exact area of the circle with a radius of 2.5 feet is 19.625 square feet.
To estimate the area to the tenths place using 3.14 for π, we round the value to the nearest tenth:
A ≈ 19.625 square feet ≈ 19.6 square feet
Among the given options:
A. 15.7 feet: This underestimates the area.
B. 16 feet: This underestimates the area.
C. 7.85 feet: This underestimates the area.
D. 15.6 feet: This underestimates the area.
Based on the estimations, none of the given options match the estimated area of approximately 19.6 square feet.
Given that the radius is 2.5 feet, we can substitute it into the formula:
A = 3.14 * (2.5 feet)^2
A = 3.14 * 6.25 square feet
A = 19.625 square feet
Therefore, the exact area of the circle with a radius of 2.5 feet is 19.625 square feet.
To estimate the area to the tenths place using 3.14 for π, we round the value to the nearest tenth:
A ≈ 19.625 square feet ≈ 19.6 square feet
Among the given options:
A. 15.7 feet: This underestimates the area.
B. 16 feet: This underestimates the area.
C. 7.85 feet: This underestimates the area.
D. 15.6 feet: This underestimates the area.
Based on the estimations, none of the given options match the estimated area of approximately 19.6 square feet.
yes blud pick one of the options
Apologies for the confusion. Among the given options, the closest estimation to the area of the circle with a radius of 2.5 feet is:
C. 7.85 feet
While this option is still an underestimation of the actual area, it is the closest option provided.
C. 7.85 feet
While this option is still an underestimation of the actual area, it is the closest option provided.
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