click below
click below
Normal Size Small Size show me how
Math 5 Unit 3
Geometry
Question | Answer |
---|---|
radius | A line segment from the center of a circle to any point on the circle (half of the diameter) |
reflex angle | An angle with a measure between 180 degrees and 360 degrees. |
acute angle | An angle that measures less than 90 degrees. |
perpendicular | line segments that form right angles are perpendicular to each other. |
diameter | A line segment that passes through the center of a circle and has endpoints on the circle (twice the length of the radius) |
isosceles triangle | A triangle with at least two sides that are the same length and ast least two angles that are the same measure. |
obtuse angle | An angle that measures more than 90 degrees, but less than 180 degrees. |
vertical angles | The angles that do not share a common side when two line intersect. Vertical angles have equal measures. Also called opposite angles. |
polygons | A closed shape made up of 3 or more line segments that meet at their endpoints. |
equilateral triangle | A triangle with 3 equal sides and 3 equal angles. |
right angle | An angle that measures exactly 90 degrees. |
adjacent angles | Two angles with a common side and vertex that do not otherwise overlap. |
tessellations | Shapes that fit together without any gapping or overlapping |
scalene triangle | A tiangle that has no equal sides or angles. |
staight angle | An angle that measures exactly 180 degrees. |
vertex | The point at which the line segments of an angle meet. |
congruent | Having the same size and shape. They will fit "on top of" the other figure with a combination of slides, slips, and turns. |
parallel | Lines that never intersect and are equidistant at all points. |
right triangle | A traingle that has a right angle. |