Square
“See Square”
I have 3 sides.
Triangle
A triangle with one right angle and two acute angles.
Right Triangle
Ray
Has a point on one end and goes on and on in the other direction.
The same as a line.
Straight Angle
Rectangle
“See Rectangle”
I have 6 sides.
Hexagon
A triangle with three acute angles.
Acute Triangle
Goes on and on forever in both directions.
Line
A quadrilateral with four equal sides and angles.
Square
Trapezoid
“See Trapezoid”
I have 4 sides.
Quadrilateral
A triangle with one obtuse angle and two acute angles.
Obtuse Triangle
Angle less than 90 degrees.
Acute Angle
How many lines of symmetry does a rhombus have?
2
Rhombus
“See Rhombus”
I have 8 sides.
Octagon
Has this many sides and angles.
3 sides & 3 angles
Point
Precise location in space.
Lines that never cross.
Parallel Lines
Hexagon
“See Hexagon”
I have 7 sides.
Heptagon.
Describe a triangle with three lines of symmetry.
A triangle with three equal sides and three equal angles.
Obtuse Angle
Greater than 90 degrees but less than 180 degrees.
The tool used to measure angles.
Protractor