Answer:

Step-by-step explanation:
we know that
The circumference of a circle is equal to

we have

Convert to an improper fraction

substitute


Answer:
the mean is 5
Step-by-step explanation:
To solve this question, we need to know the triangle inequality property, which states that the sum of two legs of a triangle is always <em>greater </em>(it can't be equal to) than the third leg. Using this property, we can deduct that the only answer that works is A, 6,6, and 5.
Try this option:
104=8*13=<u>(2*3+2)*(5+8)</u>
or
<u>(2*5+3)*8</u>