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 3.25 meters, the circumference can be calculated as:
C = 3.14 * 3.25 = 10.205 meters
Rounded to the hundredths place, the estimated circumference is 10.21 meters.
Therefore, the correct answer is 10.21 meters.
What is the circumference of a circle with a diameter of 3.25 meters? Estimate the circumference to the hundredths place using 3.14 for π
.(1 point)
Responses
10.2 meters
10.2 meters
10.21 meters
10.21 meters
10.22 meters
10.22 meters
33.18 meters
10 answers
What is the circumference of a circle with a radius of 2.5 feet? Estimate the circumference to the tenths place using 3.14 for π
.(1 point)
Responses
15.6 feet
15.6 feet
15.7 feet
15.7 feet
16 feet
16 feet
7.85 feet
.(1 point)
Responses
15.6 feet
15.6 feet
15.7 feet
15.7 feet
16 feet
16 feet
7.85 feet
The circumference of a circle can be found using the formula C = 2πr, where C is the circumference and r is the radius.
Given that the radius is 2.5 feet, the circumference can be calculated as:
C = 2 * 3.14 * 2.5 = 15.7 feet
Rounded to the tenths place, the estimated circumference is 15.7 feet.
Therefore, the correct answer is 15.7 feet.
Given that the radius is 2.5 feet, the circumference can be calculated as:
C = 2 * 3.14 * 2.5 = 15.7 feet
Rounded to the tenths place, the estimated circumference is 15.7 feet.
Therefore, the correct answer is 15.7 feet.
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
.(1 point)
Responses
452.16 square feet
452.16 square feet
452.2 square feet
452.2 square feet
75.4 square feet
75.4 square feet
113.04 square feet
.(1 point)
Responses
452.16 square feet
452.16 square feet
452.2 square feet
452.2 square feet
75.4 square feet
75.4 square feet
113.04 square feet
The area of a circle can be found using the formula A = πr^2, where A is the area and r is the radius.
Given that the radius is 12 feet, the area can be calculated as:
A = 3.14 * 12^2 = 3.14 * 144 = 452.16 square feet
Rounded to the hundredths place, the estimated area is 452.16 square feet.
Therefore, the correct answer is 452.16 square feet.
Given that the radius is 12 feet, the area can be calculated as:
A = 3.14 * 12^2 = 3.14 * 144 = 452.16 square feet
Rounded to the hundredths place, the estimated area is 452.16 square feet.
Therefore, the correct answer is 452.16 square feet.
What is the area of a circle with a diameter of 10 millimeters? Estimate the area to the tenths place using 3.14 for π
.(1 point)
Responses
78.5 square mm
78.5 square mm
79 square mm
79 square mm
15.7 square mm
15.7 square mm
314 square mm
314 square mm
.(1 point)
Responses
78.5 square mm
78.5 square mm
79 square mm
79 square mm
15.7 square mm
15.7 square mm
314 square mm
314 square mm
The area of a circle can be found using the formula A = πr^2, where A is the area and r is the radius. However, in this case, the given measurement is the diameter, not the radius.
To find the radius, we can divide the diameter by 2:
Radius = Diameter / 2 = 10 mm / 2 = 5 mm
Now we can calculate the area using the formula:
A = πr^2 = 3.14 * 5^2 = 3.14 * 25 = 78.5 square mm
Rounded to the tenths place, the estimated area is 78.5 square mm.
Therefore, the correct answer is 78.5 square mm.
To find the radius, we can divide the diameter by 2:
Radius = Diameter / 2 = 10 mm / 2 = 5 mm
Now we can calculate the area using the formula:
A = πr^2 = 3.14 * 5^2 = 3.14 * 25 = 78.5 square mm
Rounded to the tenths place, the estimated area is 78.5 square mm.
Therefore, the correct answer is 78.5 square mm.
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