Lines and Rays
Angles
Triangles
Lines
Quadrilaterals
100
an exact location in space
What is a point?
100
an angle that forms a square in a corner
What is a right angle?
100
a polygon with three sides and three angles
What is a triangle?
100
lines in a plane that cross at exactly one point
What are intersecting lines?
100
a polygon with four sides and four angles
What is a quadrilateral?
200
a straight path of points that continues without end in both directions
What is a line?
200
an angle that forms a line
What is a straight angle?
200
a triangle with three angles that each measure less than 90 degrees
What is an acute triangle?
200
lines in a plane that are always the same distance apart.
What are parallel lines?
200
at least one pair of parallel sides
What is a trapezoid?
300
a part of a line between two endpoints
What is a line segment?
300
an angle that is less than a right angle
What is an acute angle?
300
an angle with one angle that measures more than 90 degrees
What is an obtuse triangle?
300
lines in a plane that intersect to form four right angles
What are perpendicular lines?
300
2 pairs of parallel sides and 2 pairs of sides of equal length
What is a parallelogram?
400
a part of a line that has one endpoint and continues without end in one direction
What is a ray?
400
an angle that is greater than a right angle, and less than a straight angle
What is an obtuse angle?
400
a triangle that has one angle that measures exactly 90 degrees
What is a right triangle?
400
what types of lines are depicted in the image?
400
2 pairs of parallel sides and four sides of equal length
What is a rhombus?
500
How is a line different from a line segment or a ray?
a line continues without end in both directions
a line segment has two endponts
a ray has one endpoint and continues without end in only one direction
500
90 degrees
180 degrees
> 90 degrees
< 90 degrees
What is right angle, straight angle, acute angle, and obtuse angle?
500
How many triangles have at least two acute angles? Explain
Acute triangle has 3
Obtuse triangle has 2
Right triangle has 2
500
What types of lines are depicted in the image?
perpendicular lines
500
2 pairs of parallel sides, 2 pairs of sides of equal length, and 4 right angles
What is a rectangle?