The maximum angular distance from looking in front of a screen to looking from the side without a change of brightness or colors. A 180-degree angle means that there is no difference, which is ...

As in a human, Lucy's thighbones (femurs) angle in from the hip toward the knee ... Broad, fan-shaped bones on either side, called the iliac blades, curve to form a pelvic basin.

A line which cuts an angle into two equal side angles is called an angle bisector. In geometry a construction is an accurate drawing. There are two main constructions which can be done using a ...