polen fen defnition
All kind of ferrous and non-ferrous metals, alloys, steel and steel products
two right angle triangles abc and dbc are on the same hypotenues bc and on the same side of bc if ac and bd intersect at p prove that ap x pc =bp x dp
two right angle triangles abc and dbc are on the same hypotenues bc and on the same side of bc if ac and bd intersect at p prove that ap x pc =bp x dp
two right angle triangles abc and dbc are on the same hypotenues bc and on the same side of bc if ac and bd intersect at p prove that ap x pc =bp x dp