Calculate the area of a circular disc 5.86cm in diameter

Answer 1

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.