i am confused in one problem and please help me,i will give picture from problem below
and question says : $AB$ is a diameter of the circle. All triangles above the diameter in the diagram are equal in area. All triangles below the diameter are equal in area.compare total area of triangles above $AB$ and total are below $AB$
i have chosen that this can't be determined by given information,because in spite of we have fact that below $AB$ we have more triangles then above $AB$,we dont know length of bases of each triangles,all sides except bases are radius so equal to each other,but in question answer is different,and explanation is following:
The total area of the upper triangles is less than the area of the lower triangles. The more triangles that you cut the semicircle into, the more of the circle that is occupied. is this right?it is test taken from GRE test,i am preparing for passing it