lines
a straight path of points that continues without end in both directions
a line
Two lines that intersect and form right angles, is called....
perpendicular lines
an angle that equals 90 degrees
right angle
a triangle with 3 equal sides
equilateral triangle
an exact location in space
point
a part of a line between two endpoints
a line segment
Perpendicular lines form
A) right angles
B) acute angles
C) straight angles
D) obtuse angles
an angle that is less than 90 degrees
acute angle
a triangle with no equal sides
scalene triangle
Create a point and label it with an A.
Give me the name of your point.
Point A
a part of a line that has one endpoint and continues without end in one direction
a ray
Draw a pair of intersecting lines.
an angle that is bigger than 90 degrees
obtuse angle
a triangle with 2 equal sides
isosceles triangle
Create a line segment using A and B.
Name your line segment
AB or BA (with a line segment on top)
How is a line different from a line segment or a ray?
line: never-ending in both directions
ray: ending in one direction
line segment: ending in both directions
The term given to 2 lines that never intersect
parallel lines
How many rays make an angle?
2
If classified by their angles, what are the 3 types of triangles?
right, obtuse, acute
Create a line using points C and D
Name your line.
CD or DC (with line on top)
A straight line equals _____ degrees?
180
Find a right angle in the classroom and write it down.
Free Points!
How are triangles classified?
sides and angles
Create an obtuse angle using points A, B, and C
Name your angle.
ABC or CBA (with angle before)