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lines
angles
triangles
quadrilaterals
whats my name
100
a set of points that form a straight path that goes in opposite directions and goes without ending
What is a iine
100
angle that is between 1 and 89 degrees
What is an acute angle
100
3 acute angles
What is an acute triangle
100
opposite sides congruent, all angles are right angles, opposite sides parallel
What is a rectangle
100
an exact location in space, represented by a dot
What is a point
200
a line that has an endpoint and goes on forever in one direction
What is a ray
200
angle that is 90 degrees
What is a right angle
200
1 right angle, 2 acute angles
What is a right triangle
200
all sides congruent, all angles are right angles, opposite sides parallel
What is a square
200
a flat surface that goes on forever in all directions
What is a plane
300
lines that meet or cross at a point
What is an intersecting line
300
angle between 91 and 179 degrees
What is an obtuse angle
300
1 obtuse angle, 2 acute angles
What is an obtuse triangle
300
opposite sides congruent, opposite sides parallel
What is a parallelogram
300
a polygon with four sides and four angles
What is a quadrilateral
400
lines that are the same distance apart and do not intersect
What are parallel lines
400
angle that is 180 degrees
What is a straight line
400
at least two sides congruent
What is an isosceles triangle
400
all sides congruent, opposite sides parallel
What is a rhombus
400
line segments that have the same length
What is a congruent line segment
500
lines that meet or cross each other to make a square corner
What is a perpendicular line
500
angle that is 360 degrees
What is a circle
500
no sides congruent
What is a scalene triangle
500
exactly one pair of opposite sides parallel
What is a trapezoid
500
the unit used to measure an angle
What is a degree