Lines that never intersect and are the same distance apart at every point.
What are parallel lines?
An angle that forms a square.
What is a right angle?
A 3-D shape with 2 square faces, 6 rectangular faces, 12 edges, and 8 vertices.
What is a rectangular prism?
Two lines that intersect and form right angles.
What are perpendicular lines?
A shape with 3 sides and 3 angles.
What is a triangle?
A 3-D shape with 6 faces that are all square, 12 edges, and 8 vertices.
What is a cube?
A closed figure with straight sides.
What is a polygon?
Which shape does not have any sets of parallel sides?
A. Square
B. Triangle
C. Trapezoid
D. Octagon
B.
A 3-D shape with no straight edges, one vertex, and a circular face.
What is a cone?
An angle that is smaller than a right angle (less than 90 degrees).
What is an acute angle?