Show:
Lines...
What's Your Angle?
Triangles, Angles, and Shapes...Oh, my!
It's Geometry... Part I
It's Geometry... Part II
100
A straight path between 2 points, called its endpoints
What is a line segment
100
This type of angle measures between 0 degrees and 90 degrees
What is an acute angle
100
This type of angle measures between 90 degrees and 180 degrees
What is an obtuse angle
100
This is the endpoint (of an angle) where two rays or line segments meet
What is the vertex
100
This is the tool used to measure angles.
What is a protractor
200
A straight path that goes on forever in BOTH directions
What is a line
200
This type of angle measures exactly 90 degrees
What is a right angle
200
This type of angle measures between 180 degrees and 360 degrees
What is a reflex angle
200
This type of triangle contains one right angle
What is a right angle
200
This type of polygon has 3 verticies, 3sides, and 3 angles
What is a triangle
300
These are lines that never meet or cross and are everywhere the same distance apart
What are parallel lines
300
This is the name for two rays or line segments with a common endpoint, called a vertex
What is an angle
300
In this type of triangle, AT LEAST 2 sides are congruent
What is an Isosceles triangle
300
This type of triangle contains one obtuse angle
What is an obtuse triangle
300
This type of triangle contains all acute angles
What is an acute triangle
400
These are lines that cross or meet
What are intersecting lines
400
These are lines that intersect at right angles
What are perpendicular lines
400
In this type of triangle, NO two sides are congruent
What is scalene triangle
400
This word means "the same"...it is often said that two triangles that are the same are ________
What is congruent
400
In this type of triangle, all sides are congruent
What is an Equilateral triangle
500
This type of angle measures 180 degrees
What is a straight angle
500
These are two angles whose measures add up to 180 degrees
What are supplementry angles
500
Can two angles be adjacent angles, but NOT supplementary angles? Explain.
What is "Yes...if their measures do not add up to 180 degrees
500
These angles are opposite each other when two lines intersect. They have the same measure in degrees.
What are vertical or opposite angles
500
These angles are next to each other. They have a common vertex and common side, but no other overlap
What are adjacent angles