What are summit angles?

Some articles on summit, summit angles, angles:

Saccheri Quadrilateral - Properties
... base, CA and DB the equal sides that are perpendicular to the base and CD the summit ... The summit angles (at C and D) are equal and acute ... The summit is longer than the base ...
Saccheri Quadrilateral
... The top CD is called the summit or upper base and the angles at C and D are called the summit angles ... is that they place the mutually exclusive options in very clear terms Are the summit angles right angles, obtuse angles, or acute angles? As it turns out, when the summit angles are right ...

Famous quotes containing the word summit:

    What if it tempt you toward the flood, my lord,
    Or to the dreadful summit of the cliff
    That beetles o’er his base into the sea,
    And there assume some other horrible form
    Which might deprive your sovereignty of reason,
    And draw you into madness?
    William Shakespeare (1564–1616)