No derivation at x=3 .
only at x=3
So hexagon is 6 sides and 6 angles
it can have a max of 2 right angles
if you make an irregular hexagon with one of the lines going into the figure then the answer is 4
if you have all the lines outside of the hexagon then the max is 2
a geoboard is a board with pegs that you can put rubber bands on to form a figure. google it
1 is an isosceles
2 is scalene
3 is an equilateral
He wanted the mathematical challenge
The difference of the heights is 65-45=20 feet, and the length of the ravine is 21 feet. By the Pythagorean Theorem, the length of the zipline is sqrt(20^2+21^2)=sqrt(841)=29.
