The formula for calculating the circumference of a circle is C = πd, where C is the circumference and d is the diameter.
Given that the diameter is 20, we can substitute this value into the formula:
C = 3.14 * 20 = 62.8
So, the approximate circumference of a circle with a diameter of 20 is 62.8 units.
What is the approximate circumference of a circle that has a diameter of 20? Use 3.14 for π and express your answer to the tenths place
9 answers
A circle has an approximate circumference of 574 meters. What is the circle’s diameter, rounded to the nearest tenth? Use 3.14 for π . (1 point) meters
The formula for calculating the circumference of a circle is C = πd, where C is the circumference and d is the diameter.
Given that the circumference is approximately 574 meters, we can rearrange the formula to solve for the diameter:
C = πd
d = C/π
Substituting the values given:
d = 574 / 3.14 ≈ 183.121
Rounding to the nearest tenth, the circle's diameter is approximately 183.1 meters.
Given that the circumference is approximately 574 meters, we can rearrange the formula to solve for the diameter:
C = πd
d = C/π
Substituting the values given:
d = 574 / 3.14 ≈ 183.121
Rounding to the nearest tenth, the circle's diameter is approximately 183.1 meters.
A circle has an approximate circumference of 574 meters. What is the circle’s diameter, rounded to the nearest tenth? Use 3.14 for π .
The formula for calculating the circumference of a circle is C = πd, where C is the circumference and d is the diameter.
Given that the circumference is approximately 574 meters, we can rearrange the formula to solve for the diameter:
C = πd
d = C/π
Substituting the values given:
d = 574 / 3.14 ≈ 182.1662
Rounding to the nearest tenth, the circle's diameter is approximately 182.2 meters.
Given that the circumference is approximately 574 meters, we can rearrange the formula to solve for the diameter:
C = πd
d = C/π
Substituting the values given:
d = 574 / 3.14 ≈ 182.1662
Rounding to the nearest tenth, the circle's diameter is approximately 182.2 meters.
If a circle has a radius of 38 inches, what is its approximate circumference to the nearest hundredths? Use 3.14 for π .
The formula for calculating the circumference of a circle is C = 2πr, where C is the circumference and r is the radius.
Given that the radius is 38 inches, we can substitute this value into the formula:
C = 2 * 3.14 * 38 ≈ 238.36
Rounding to the nearest hundredths, the approximate circumference of the circle with a radius of 38 inches is 238.36 inches.
Given that the radius is 38 inches, we can substitute this value into the formula:
C = 2 * 3.14 * 38 ≈ 238.36
Rounding to the nearest hundredths, the approximate circumference of the circle with a radius of 38 inches is 238.36 inches.
The radius of a circle is 75 mm. What is the approximate area of the circle? Write your answer to the tenths place. Use 3.14 for π .
The formula for calculating the area of a circle is A = πr^2, where A is the area and r is the radius.
Given that the radius is 75 mm, we can substitute this value into the formula:
A = 3.14 * 75^2 ≈ 17671.25
Rounding to the tenths place, the approximate area of the circle with a radius of 75 mm is 17671.3 square millimeters.
Given that the radius is 75 mm, we can substitute this value into the formula:
A = 3.14 * 75^2 ≈ 17671.25
Rounding to the tenths place, the approximate area of the circle with a radius of 75 mm is 17671.3 square millimeters.