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Math Vocabulary
Chapter 19, Part 2
| Question | Answer |
|---|---|
| intersecting lines | lines that cross each other at exactly one point |
| parallel lines | lines in the same plane that never intersect and are always the same distance apart |
| perpendicular lines | two lines that intersect to form four right angles |
| polygon | a closed plane figure formed by three or more straight sides that are line segments |
| triangle | a polygon with three sides and three angles |
| quadrilateral | a polygon with four sides and four angles |
| pentagon | a polygon with five sides and five angles |
| hexagon | a polygon with six sides and six angles |
| octagon | a polygon with eight sides and eight angles |
| decagon | a polygon with ten sides and ten angles |
| regular polygon | a polygon that has sides that are the same length |
| parallelogram | a quadrilateral whose opposite sides are parallel and equal, or congruent |
| rhombus | a parallelogram with four equal, or congruent sides |
| trapezoid | a quadrilateral with exactly one pair of parallel sides |
| equilateral triangle | a triangle with three equal sides |
| isosceles triangle | a triangle with two equal sides |
| scalene triangle | a triangle with no equal sides |
| right triangle | a triangle with one right angle |
| acute triangle | a triangle with three acute angles |
| obtuse triangle | a triangle with one obtuse angle |
Created by:
RossCoops3
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