What type of angle forms a square or 90 degree angle.
Right Angle
A triangle with three angles less than 90 degrees.
Acute
What is a Polygon?
A plane closed shape with line segments and no curved lines.
What type of lines are below?![]()
Parallel
Identify the quadrilateral below.

Quadrilateral, Trapezoid and Parallelogram
An angle less than 90 degree.
Acute Angle
A triangle with one angle larger than 90 degrees.
obtuse
What is a line of symmetry?
A line of symmetry divides a shape into equal parts that are the same in size and shape.
What types of lines are below?
Perpendicular Lines
Identify the quadrilateral below.![]()
Quadrilateral, parallelogram, Trapezoid, and Rhombus
An angle greater than 90 degrees.
Obtuse
A triangle with one 90 degree angle.
Right Triangle
Name the triangle with two equal sides.
isosceles triangle
Lines that do not cross at a 90 degree angle are called?
intersecting lines
Identify the quadrilateral below.
![]()
Quadrilateral, Square, Rectangle, Rhombus, Parallelogram, and Trapezoid
A part of a line between two end points.
line segments
How many acute angle does a right triangle angle have?
Two angles
Name the triangle.
Equilateral, Acute
How do these streets cross?![]()
perpendicular
Identify the quadrilateral below.![]()
Quadrilateral, Rectangle, Parallelogram, Trapezoid
A part of a line that has a starting point and continues without an end point.
Ray
How many right angles does a square have?
4
Name the type of triangle:
Scalene, Acute
Train tracks are always _____________.
parallel
Identify the quadrilateral below.![]()
Quadrilateral, Rhombus, Trapezoid, Parallelogram