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chapter 1 vocab
biology
| Question | Answer |
|---|---|
| Angle bisector | In geometry, the angle bisector theorem is concerned with the relative lengths of the two segments that a triangle's side is divided into by a line that bisects the opposite angle. |
| Congruent segments | Two objects are congruent if they have the same dimensions and shape. Very loosely, you can think of it as meaning 'equal', but it has a very precise meaning that you should understand completely, especially for complex shapes such as polygons. |
| isometric drawings | designating a method of projection (isometric projection) in which a three-dimensional object is represented by a drawing. |
| linear pair | A linear pair is a pair of adjacent, supplementary angles. Adjacent means next to each other and supplementary means that the measures of the two angles add up to equal 180 degrees. Adjacent and Supplementary. |
| net | a bag or other contrivance of strong thread or cord worked into an open, meshed fabric, for catching fish, birds, or other animals: a butterfly net. |
| orthographic drawings | orthographic projection. orthographic projection. noun. The definition of an orthographic projection is a two-dimensional drawing of a three-dimensional object, using two or more additional drawings to show additional views of the object. |
| perpendicular bisector | A line which cuts a line segment into two equal parts at 90°. |
| postulate | suggest or assume the existence, fact, or truth of (something) as a basis for reasoning, discussion, or belief. |
| segment bisector | A point, segment, line, or plane that divides a line segment into two equal parts. |
| supplementary angles | Two Angles are Supplementary if they add up to 180 degrees. |
| vertical angles | A pair of non-adjacent angles formed by the intersection of two straight lines |
| point | n modern mathematics, a point refers usually to an element of some set, called space. |
| line | a long, narrow mark or band. |
| plane | a flat surface on which a straight line joining any two points on it would wholly lie. |
| segment | each of the parts into which something is or may be divided. |
| ray | each of the lines in which light (and heat) may seem to stream from the sun or any luminous body, or pass through a small opening. |
| opposite ray | wo rays with a common endpoint that form a straight line |
| collinear points | three or more points that lie in a straight line. |
| angle | n geometry, a angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed by two rays lie in a plane, but this plane does not have to be a Euclidean plane. |
| sides | a position to the left or right of an object, place, or central point. |
| vertex | the highest point; the top or apex. |
| acute angle | Different Angles have different names: types of angle. An Acute Angle is less than 90° This is an acute angle. All the angles below are acute ... |
| right angle | an angle of 90°, as in a corner of a square or at the intersection of two perpendicular straight lines. |
| obtuse angle | An Obtuse Angle is more than 90° but less than 180°. Obtuse Angle This is an obtuse angle ! |
| straight angle | A straight angle changes the direction to point the opposite way. |
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cmr110798
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