What happens if you perform the steps for constructing an angle bisector when the given angle is a straight angle? Does the construction still work? If so, explain why and show a sample construction. If not, explain why not.

Geometry? Easy!

Lets start with the width. Width = x
Length of the triangle = 3x 
Perimeter = 100. 

Perimeter Formula = 2(l+b)
                       100 = 2(x+3x)
                       100/2 = 4x
                         50 = 4x
                         50/4 = x
                       12.5 inches = x = width   3x (12.5 x 3) = 37.5 inches = length.