Question

I NEED SOME HELP I WILL GIVE MEDAL

Answer 1

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 .)

Answer 2

do you know hot to find the area of a circle?

Answer 3

A= pir^2

Answer 4

1.

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 .)

753.6 mm2
11,304 mm2
45,216 mm2
376.8 mm2

Answer 5

first you need to find out what the radius is. a radius is half of the diameter. use the equation and there you go

Answer 6

no help -_-

Answer 7

ok, the diameter is 120 mm. what is half of that?

Answer 8

what is the area of the inner circle? I NEED TO KNOW THAT!

Answer 9

AREA= PI radius^2

Answer 10

Radius= 60mm

Answer 11

AREA = PI*60^2=11309.73 mm^2 minus the inner circle area is the answer.
How to find the area of the inner circle?

Answer 12

guessing the answer is B

Answer 13

never mind no one really helped i found the answer

Answer 14

WHAT?

Answer 15

TELL ME IT IS B

Answer 16

yes

Answer 17

we did help.

Answer 18

YES!

Answer 19

no you really didnt

Answer 20

this question is closed thank you ^_^

Answer 21

SO THAT MEANS THE AREA OF THE INNER CIRCLE IS 5MM^2

Answer 22

IS THAT UNIVERSAL?

Answer 23

we gave you the formula and we were trying to not give you the answer