How can you use different ways to write a number as ten and ones
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The diameter of the semicircle is 16 feet.
He calculates that he needs to buy abut 25.12 feet of fencing.
To find amount of fencing we find the circumference of semicircle
Circumference of semicircle =
Where d is the diameter of the circle
d= 16 given and value of pi is 3.14
Circumference of semicircle =
=25.12 + 16 = 41.12 feet
Scott's calculation was wrong because he forgot to add the diameter d
Circumference of circle is half way of circle plus the diameter of circle.
Correct amount of fencing = 41.12 feet
The formula for finding the area of a rug: 
Plugging in the values we know, we can solve for s.
Take the square root of both sides.
is approximately equal to 8.89
So, 8.89 feet is the answer.
Plugging in the values we know, we can solve for s.
Take the square root of both sides.
So, 8.89 feet is the answer.