Show that & , {0}, and O are all differentia ?
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Step-by-step explanation:
From the given photo, we can see there are 3 circles.
The biggest one with its radius: 2+2+2= 8 cm
The medium one with its radius: 2+2 = 4 cm
The smallest one with its radius: 2 cm
After that, we find the area of each circle with the following formula:
A = \pi \times {r}^{2}A=π×r
2
The area of the biggest circle is: π = 64π
The area of the medium circle is: π = 16π
The area of the smallest circle is: π = 4π
So the area of the shade part is:
The area of the medium circle - The area of the smallest circle
= 64π - 4π
= 60π
So the percentage of the logo is shaded blue:
= The area of the shaded blue / The area of the biggest circle
= 60π / 64π
= 0.9375
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