The correct formula to find the approximate circumference of a circle is C = 2πr.
Using this formula, the approximate circumference of a circle with a radius of 12 is:
C = 2 * 3.14 * 12 = 75.36
Therefore, none of the following options are correct.
Which of the following uses the correct formula to find the approximate circumference of a circle that has a radius of 12? Use 3.14 for π and express your answer to the hundredths place.(1 point)
15 answers
Which of the following uses the correct formula to find the approximate circumference of a circle that has a radius of 450?(1 point)
To find the approximate circumference of a circle, we use the formula C = 2πr.
Using this formula, the approximate circumference of a circle with a radius of 450 is:
C = 2 * 3.14 * 450 = 2826
Therefore, none of the given options are correct.
Using this formula, the approximate circumference of a circle with a radius of 450 is:
C = 2 * 3.14 * 450 = 2826
Therefore, none of the given options are correct.
Which of the following uses the correct formula to find the approximate circumference of a circle that has a radius of 450?(1 point)
Responses
C≈3.14⋅450÷2
upper C approximately equals 3.14 times 450 divided by 2
C≈3.14⋅150
upper C approximately equals 3.14 times 150
C≈3.14⋅4502
upper C approximately equals 3.14 times 450 squared
C≈2⋅3.14⋅450
Responses
C≈3.14⋅450÷2
upper C approximately equals 3.14 times 450 divided by 2
C≈3.14⋅150
upper C approximately equals 3.14 times 150
C≈3.14⋅4502
upper C approximately equals 3.14 times 450 squared
C≈2⋅3.14⋅450
The correct formula to find the approximate circumference of a circle is C = 2πr.
Using this formula, the approximate circumference of a circle with a radius of 450 is:
C = 2 * 3.14 * 450 = 2826
Therefore, the correct option is:
C≈2⋅3.14⋅450
Using this formula, the approximate circumference of a circle with a radius of 450 is:
C = 2 * 3.14 * 450 = 2826
Therefore, the correct option is:
C≈2⋅3.14⋅450
Which formula correctly describes the proportional relationship between the circumference of a circle and the diameter?(1 point)
Responses
Cd=π
Start Fraction upper C over d End Fraction equals pi
π=dC
pi equals Start Fraction d over upper C
A=πr2
upper A equals pi r squared
C=πd
upper C equals Start Fraction pi over d End Fraction
Responses
Cd=π
Start Fraction upper C over d End Fraction equals pi
π=dC
pi equals Start Fraction d over upper C
A=πr2
upper A equals pi r squared
C=πd
upper C equals Start Fraction pi over d End Fraction
The correct formula that describes the proportional relationship between the circumference of a circle and the diameter is:
C = πd
This means that the circumference (C) is equal to the diameter (d) multiplied by pi (π).
Therefore, the correct option is:
C=πd
C = πd
This means that the circumference (C) is equal to the diameter (d) multiplied by pi (π).
Therefore, the correct option is:
C=πd
Use the correct formula to find the area of a circle if the diameter is 21 mi. Round to the nearest hundredths place. Use 3.14 for π .(1 point)
Responses
1,384.74 mi.2
1,384.74 mi squared
65.94 mi.2
65.94 mi squared
131.88 mi.2
131.88 mi squared
346.19 mi.2
Responses
1,384.74 mi.2
1,384.74 mi squared
65.94 mi.2
65.94 mi squared
131.88 mi.2
131.88 mi squared
346.19 mi.2
The correct formula to find the area of a circle is A = πr^2, where r is the radius of the circle.
Given that the diameter is 21 mi, we can find the radius by dividing the diameter by 2:
r = 21 mi / 2 = 10.5 mi
Using the formula and approximating π to 3.14, the area of the circle is:
A = 3.14 * (10.5 mi)^2 = 3.14 * 110.25 mi^2 = 345.915 mi^2
Rounding to the nearest hundredths place, the area is approximately 345.91 mi^2.
Therefore, the correct option is:
346.19 mi.2
Given that the diameter is 21 mi, we can find the radius by dividing the diameter by 2:
r = 21 mi / 2 = 10.5 mi
Using the formula and approximating π to 3.14, the area of the circle is:
A = 3.14 * (10.5 mi)^2 = 3.14 * 110.25 mi^2 = 345.915 mi^2
Rounding to the nearest hundredths place, the area is approximately 345.91 mi^2.
Therefore, the correct option is:
346.19 mi.2
The correct formula for finding the area of a circle?
The correct formula for finding the area of a circle is:
A = πr^2
Where A represents the area of the circle and r represents the radius.
A = πr^2
Where A represents the area of the circle and r represents the radius.
Which of the following is the correct formula for finding the area of a circle?(1 point)
Responses
A=C2÷4πA=πd2
upper A equals upper C squared divided by 4 pi upper A equals pi d squared
A=πd
upper A equals pi d
A=2πr
upper A equals 2 pi r
A=πr2
Responses
A=C2÷4πA=πd2
upper A equals upper C squared divided by 4 pi upper A equals pi d squared
A=πd
upper A equals pi d
A=2πr
upper A equals 2 pi r
A=πr2
The correct formula for finding the area of a circle is:
A = πr^2
Where A represents the area of the circle and r represents the radius.
Therefore, the correct option is:
A = πr^2
A = πr^2
Where A represents the area of the circle and r represents the radius.
Therefore, the correct option is:
A = πr^2
Option A, Option B, Option C, Or Option D
I apologize for the confusion. The correct option is:
Option D: A = πr^2
Option D: A = πr^2
3 answers