Construct an isosceles triangle with given apex angle and leg with compass and straightedge

(For assistance see www.mathopenref.com/constisosceles3.html)

1. Construct an isosceles triangle with the given apex angle and leg length.

2. Draw two isoceles triangles that share a common base. (Hint: draw the top one first).
It should look like the diagram below.

(C) Copyright John Page 2007