Definitions
Concepts
Angles
Principles
Wild Card
100
A triangle that has no equal sides
What is a scalene triangle?
100
What type of angle is the supplement of an acute angle?
Obtuse
100
If a polygon has 10 sides, what is its' central angle?
36 degrees
100
The ____ distance between two points is a straight line.
Shortest
100
The equal sides of an isosceles triangle are called what?
Legs
200
A pair of angles that equal each other
What are vertical angles?
200
A right triangle can ____ be obtuse. (always, never, sometimes).
Never
200
What is the sum of interior angles of a 20 sided polygon?
3,240 degrees
200
How many intersection points does two straight lines have?
Only one.
200
What is the measure of each interior angles of a ten-sided regular polygon?
144 degrees
300
A polygon that is equilateral and equiangular.
What is a regular polygon?
300
A bisector of a line segment must pass through ____?
What is the midpoint of the segment?
300
If two angles are both equal and supplementary they must be?
Both 90 degrees.
300
State (in words) the principle that proves: AB= BC CD = 2 in DE = 2 in CD + AB = BC + DE
If equals are added to equals the sums are equal.
300
A polygon that has seven sides will have how many interior angles?
Seven
400
The side opposite the right angle in a triangle is called the _____.
Hypotenuse.
400
As the size of an angle increases, the size of its supplement _______.
Decreases
400
If an angle is labeled ABC the vertex lies at point _____.
B
400
State (in words) the principle that proves: AB= BC CD = 2 in DE = 2 in AB - CD = BC - DE
If equals are subtracted from equals, then remainders are equal.
400
The perpendicular sides of a right triangle are called____
legs
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