The formula for this is

. If the diameter is 8 the radius is 4, so filling in accordingly we have

and

which is

and when you multiply in 3.14 you get that A = 401.92 or B above.
Answer:

B. 20
Step-by-step explanation:
<em>First, you divide by 5 from both sides of equation.</em>
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</em>
<em>Simplify, to find the answer.</em>
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</em>
<em>
, which is our answer.</em>
Step-by-step explanation:
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Answer:
The length of a side of the square would be 8.
Step-by-step explanation:
Answer:
No is correct
Step-by-step explanation:
convert 2/3 into 6ths
4/6 = 8/12
so no, non of them equal to 4/8