They are similar because of the color and they are different by the size and shape hope that helps you
I'm pretty sure its x=<span><span>−79/</span><span>4
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Answer:
B is the answer
Step-by-step explanation:
They can be derived by using calculus(integration to be precise)


(its how pi is defined)
so that gives circumference
to get area , you use integration


that gives the area.
if you don't know calculus yet ,dont worry, just remember the formulae.