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How do you find the of a circumference of circle in math?
the formula is: circumference= p*diameter
A piece of string 25cm long goes exactly once around the edge of a plate in the form of a quadrant Calculate the area of the quadrant?
Presumably the plate is completely flat. The circumference will be 4*25 = 100 cm. First find the radius of the plate by rearranging the formula: 2*pi*radius = 100cm radius = 100/2*pi = 15.91549431 cm. Now use the formula pi*radius2 to find the area of the plate, and then divide your answer by 4 to give you the area of the quadrant. pi*15.915494312 = 795.7747155/4 = 198.9436789cm2. Therefore, the area of the quadrant is 199 cm2 correct to three significant figures.
How do you find the circumference of a circle with the radius of 84?
The circumference is approximately 527.79 units. The formula is: C = 2*Pi*r
You have the circumference and you need to know the diameter?
The formula for finding circumference is 2∏r (or ∏d). So to find the diameter, you would divide the circumference by pi (3.14, approximately).
What is the diameter of a circle whose circumference is 47.1cm?
To find the diameter of a circle with a given circumference, you can use the formula: circumference = π * diameter. Given a circumference of 47.1 cm, you can rearrange the formula to solve for the diameter. Divide the circumference by π (approximately 3.14159) to find the diameter. Therefore, the diameter of a circle with a circumference of 47.1 cm is approximately 15 cm.
