Show:
Lines
Triangles
Angles
Plane Figures
Quadrilateral
100
A straight path extending in both directions with no endpoints.
What is a line?
100
A triangle with three equal sides.
What is an equilateral triangle?
100
A unit of measure used to measure angles.
What is degrees?
100
A closed plane figure with closed sides.
What is a polygon?
100
A quadrilateral with 1 pair of parallel sides.
What is a trapezoid?
200
Lines that never cross
What are parallel lines?
200
A triangle with two equal sides
What is an isosceles triangle?
200
An angle that forms a square corner.
What is a right angle?
200
A polygon with 4 sides and 4 angles.
What is a quadrilateral?
200
A quadrilateral with opposite sides parallel and equal.
What is a parallelogram?
300
Part of a line that has two endpoints.
What is aline segment?
300
A triangle in which all three sides have different lengths?
What is a scalene triangle?
300
An angle that measures less than 90 degrees.
What is an acute angle?
300
A polygon with 5 sides and 5 angles.
What is a pentagon?
300
A quadrilateral with 2 pairs of parallel sides and 4 equal sides.
What is a rhombus?
400
Lines that cross at exactly one point.
What are intersecting lines?
400
A trinagle with one right angle.
What is a right triangle.
400
An angle that measures more than 90 degrees.
What is an obtuse angle?
400
A polygon with 6 sides and 6 angles.
What is a hexagon?
400
This quadrilateral is also a square.
What is a rhombus?
500
Lines that cross to form right angles.
What are perpendicular lines?
500
A triangle with one obtuse angle
What is an obtuse triangle?
500
A figure formed by twqo rays that have the same endpoint.
What is an angle?
500
A polygon with 8 sides and 8 angles.
What is an octagon?
500
This type of quadrilateral can also be a rectangle.
What is a parallelogram?