Three line segments divide a triangle into five triangles. The area of these triangles is called u,v,x, yand z, as in the figure.
(a) Prove that uv=yz.
(b) Prove that the area of the great triangle is at most yxzā
https://cdn.artofproblemsolving.com/attachments/9/4/2041d62d014cf742876e01dd8c604c4d38a167.png geometryareasGeometric Inequalities