D because it has to be a chord due to being perpendicular to a diameter
Answer:
414.857143
Step-by-step explanation:
r=66
=2*66*22/7
=414.857143
Answer:
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Answer:
Step-by-step explanation:
is essentially 
(you are squaring 
, so multiplying it by itself), so to simplify, you would need to distribute.
A good way to go about this is using the F.O.I.L. method, multiplying the First numbers in the parentheses, then the Outers, then Inners, and finally, Lasts.
>> 
>> 
>> 
(
)
After doing so, you would end up with 
, and after combining like terms, 
.
To write the expression in standard form, though, just order the terms from highest to lowest power!
They are similar AEB and BDC?
