- straight angle: An angle formed by two rays pointing in opposite directions, creating a straight line (180 degrees).
- intersecting lines: Two or more lines that cross or meet at a single point, forming angles at the intersection.
- perpendicular lines: Intersecting lines that form right angles (90 degrees) at their point of intersection.
- parallel lines: Lines in the same plane that never intersect and remain equidistant from each other at all points.
- equilateral triangle: A triangle with all three sides of equal length and all three interior angles measuring 60 degrees.
- isosceles triangle: A triangle with at least two sides of equal length; the angles opposite the equal sides are also equal.
- scalene triangle: A triangle with all three sides of different lengths and all three interior angles of different measures.
Parent Tip: Review the logic above to help your child master the concept of geometry vocabulary worksheet.
