Triangles
Plane Figures
Lines
Lines/ Angles
100
This triangle has a right angle.
What is a right triangle?
100
This figure has 3 sides and 3 angles.
What is a triangle?
100
Straight and continues in both directions.
What is a line?
100
An angle that is less than 90 degrees.
What is an acute angle?
200
This triangle has 3 equal sides.
What is an equilateral triangle?
200
This figure has 5 sides and 5 angles.
What is a pentagon?
200
An exact location or position.
What is a point?
200
An angle that is more than 90 degrees.
What is an obtuse angle?
200
A quadrilateral with 2 pairs of parallel sides and 2 pairs of equal sides.
What is a parallelgram?
300
This triangle has 3 different side lengths.
What is a scalene triangle?
300
This figure has 8 sides and 8 angles.
What is an octagon?
300
Has one endpoint and continues in one direction.
What is a ray?
300
formed by two rays or line segments that share an endpoint.
What is an angle?
300
A quadrilateral with 2 pairs of parallel sides and 4 equal sides.
What is a rhombus?
400
This triangle has an obtuse angle.
What is an obtuse triangle?
400
This figure has 6 sides and 6 angles.
What is a hexagon?
400
Straight and has two endpoints.
What is a line segment?
400
intersecting lines that cross to form right angles.
What is perpendicular lines?
400
A quadrilateral with one pair of parallel sides, but the sizes of the angles are not always the same.
What is a trapezoid?
500
This triangle has 2 equal sides.
What is an isosceles triangle?
500
This figure has 4 sides and 4 angles.