For any polygon the sum of the exterior angles is 360. Since The polygon is regular divide 360 by 12 to get the exterior angle measure. Interior and exterior angles are supplemental so subtract the exterior angle measure from 180.<span>
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-2h^3-h^2+10
the - distributes too (9h^3+h^2-2h)
then combine like terms in
7h^3+8h-9h^3-h+2h
Answer:
They will need √161 feet, or about 12.69 feet of fencing. √161 is irrational because 161 is not a perfect square.
Step-by-step explanation:




The answer is D. Find the time taken by setting the derivative of h to be 0, then substitute it back into h to find the maximum height.
Not drawn to scale, but it should be correct.
After connecting the three points, draw out a triangle and spot for the base and height.