Answer:
Nitrous Oxide
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<h2>N. O</h2>___________
Because ,the resulting Height would be Zero which won't be able to form a ∆ .
What is the constant variation?
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Answer:
Circumference(C) of the circle is given by:
where, r is the radius of the circle.
As per the statement:
A circular swimming pool has a radius of 15 ft.
⇒radius of the pool(r) = 15 ft
There is a path all around that pool that is three feet wide.
⇒radius of the outer edge of the path around the pool(r') = 15 +3 = 18 ft
Substitute these in the formula we have;
⇒
Therefore, the circumference of the outer edge of the path around the pool is, 113.04 ft