Calculate the area of a circular disc 5.86cm in diameter
To calculate the area of a circular disc, we use the formula:
A = πr²
Given that the diameter of the disc is 5.86 cm, we can find the radius by dividing the diameter by 2:
r = d/2 = 5.86 cm / 2 = 2.93 cm
Now we can plug this value into the formula to calculate the area:
A = π(2.93 cm)²
A = 3.14159 * (2.93 cm)²
A = 3.14159 * 8.5849 cm²
A ≈ 27.04 cm²
Therefore, the area of the circular disc is approximately 27.04 cm².
To calculate the area of a circular disc, you will need to use the formula for the area of a circle. The formula is:
Area = π * radius^2
where π is a mathematical constant approximately equal to 3.14159, and the radius is half the diameter.
In this case, the diameter is given as 5.86 cm. To find the radius, divide the diameter by 2:
Radius = 5.86 cm / 2 = 2.93 cm
Now that we have the radius, we can substitute it into the formula:
Area = 3.14159 * (2.93 cm)^2
Calculating the values inside the brackets first:
Area = 3.14159 * 8.5849 cm^2
Now, multiply the value of π by 8.5849 cm^2:
Area ≈ 27.052 cm^2
Therefore, the area of the circular disc is approximately 27.052 square centimeters.
To calculate the area of a circular disc, you can use the formula A = πr^2, where A is the area and r is the radius of the disc.
Given the diameter of the disc is 5.86cm, we can find the radius by dividing the diameter by 2.
Radius = Diameter / 2 = 5.86cm / 2 = 2.93cm
Now, substitute the radius value into the formula:
A = πr^2 = π(2.93cm)^2
Using the value for π as approximately 3.14159, the calculation becomes:
A ≈ 3.14159 * (2.93cm)^2
A ≈ 3.14159 * (2.93cm * 2.93cm)
A ≈ 3.14159 * 8.5689cm^2
A ≈ 26.9815 cm^2
Therefore, the area of the circular disc with a diameter of 5.86cm is approximately 26.9815 square centimeters.