A straight line that cuts a pair of parallel lines is called an intersecting transversal. When a pair of parallel lines meet an intersecting transversal, pairs of angles with particular properties ...

Chances are that the geometry of right angles, straight lines and flat planes pervades the architecture in your life. Inside and out, most of the visible edges of houses, apartment buildings ...

Save guides, add subjects and pick up where you left off with your BBC account. Triangles close triangleA polygon with three straight sides. have three sides, therefore they have three angles.