Angles
This angle is 90 degrees.
right angle
This has two rays or line segments that share an endpoint.
angle
This shape goes on in both directions without ending.
A line
How many sides does a rectangle have?
4 sides
This angle is 180 degrees
a straight angle
acute triangle
When lines cross each other, we say they....
intersect
A trapezoid has how many pairs of parallel lines?
1 pair
obtuse angle
This triangle has one angle bigger than a right angles.
obtuse triangle
Lines that will never intersect are called...
Parallel lines
A parallelogram has how many pairs of parallel lines?
2 pairs
We measure angles with this instrument
protractor
A line that stops in both ends.
Line segment
Lines that pass through the same points are called....
Intersecting lines
How many congruent sides does a Rhombus have?
4 congruent sides.
This angle is less than 90 degrees
an acute angle
A line that stops in one side and continues on the other side.
A Ray
Lines that form square corners are called...
Perpendicular lines
Rectangle, Square, Trapezoid, Parallelogram, Rhombus.