The angles can be both exterior or both interior to the two lines. '''Interior alternate angles''' are inside the [[parallel]] lines, and on opposite sides of the transversal. '''Exterior alternate angles''' are outside the parralel lines and on opposite sides of the transversal. | The angles can be both exterior or both interior to the two lines. '''Interior alternate angles''' are inside the [[parallel]] lines, and on opposite sides of the transversal. '''Exterior alternate angles''' are outside the parralel lines and on opposite sides of the transversal. |