Damien recently purchased a plot of land in the shape of a pentagon. He is planning to install a perimeter fence. To find the length of the fence Damien used the expression w(k) +2[f(k) +g(k)]. Find the length of the fence.

The answer is 6k^3+9k^2-15k+10

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.