Question

Rupert is copying some files from his computer to a compact disc, like the one shown above.

If the diameter of the compact disc is 120 millimeters, what is the approximate area ignoring the center hole? (Use 3.14 for .)
A.
11,304 mm2
B.
376.8 mm2
C.
753.6 mm2
D.
45,216 mm2

Answer 1

[AI-generated answer — Bot GPT 3.5]

First, we need to find the area of the entire compact disc by using the formula for the area of a circle: A = πr^2.

Given that the diameter of the compact disc is 120 millimeters, we can find the radius by dividing the diameter by 2: 120 mm / 2 = 60 mm.

Next, we can plug the radius into the formula for the area of a circle and calculate the area: A = 3.14 x (60 mm)^2 = 3.14 x 3600 mm^2 = 11,304 mm^2.

Therefore, the approximate area of the compact disc, ignoring the center hole, is approximately 11,304 mm^2, which corresponds to option A.