Triangles
Vocabulary
Solve for x
Formulas
Parallel Lines and Transversals
100
a2+b2=c2
What is the Pythagorean Theorem.
100
To cut in half.
What is to Bisect.
100
x + 3 = 4
What is 1.
100
A = (1/2)b*h
What is Area of a Triangle.
100
The angles formed from two intersecting lines that are opposite each other.
What are Vertical Pairs.
200
A triangle with two congruent sides.
What is Isosceles.
200
A line that starts at a vertex of a triangle and extends to the opposite side of the triangle, forming a 90 degree angle.
What is an Altitude.
200
x - 3 = -5
What is -2.
200
A = bh
What is the Area of a Rectangle or Parallelogram.
200
The angles formed from two intersecting lines that are adjacent to each other.
What are Linear Pairs.
300
A pair of triangles with congruent angles and proportional sides are _______.
What is Similar.
300
A line that cuts an angle in half.
What is an Angle Bisector.
300
2x = 8
What is 4.
300
x1 + x2, y1 + y2
--------, --------
2            2
What is the Midpoint.
300
A line that passes through two other lines.
What is a Transversal.
400
A line segment bisects the angle of an equilateral triangle. What is the size of the smaller angle?
What is 30 degrees.
400
The degrees in a triangle add up to _____.
What is 180 degrees.
400
2x-4=12
What is 8.
400
d = sqrt((x2-x1)2+(y2-y1)2
What is the Distance Formula.
400
When a transversal passes through two parallel lines, the alternate interior angles are _______.
What is Congruent.
500
Refer to Image.
What is 10.
500
Two figures that have the same size and same shape are ________.
What is congruent.
500
-8x+5+12x=13
What is 2.
500
           y2 - y1
m   =   ----------
           x2 - x1
What is the Formula for the Slope of a Line.
500
When a transversal passes through two parallel lines, the same side exterior angles are _______.
What is Supplementary.
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