Basic Geometry Concepts
Types of Angles
Types of Triangles
Triangle Congruence
Geometric Equations & Formulas
100
Symbol for congruence
What is ≅
100
An angle less then 90º.
What is an acute angle
100
Explain why a triangle cannot be right and equilateral at the same time.
Right angles don't have 3 equal measures. It is an isosceles triangle.
100
What does congruent mean?
same shape, same size
100
Formula for area of a triangle
1/2 x b + h
200
All the points and lines that lie on the same plane are said to be _________.
What is a coplanar.
200
An angle that is 90º
What is a right angle
200
An isosceles triangle
A triangle with 2 congruent sides
200
A line of _________ forms two congruent shapes.
What is symmetry
200
Volume of a rectangle
What is V=lwh
300
Pairs of lines can form what?
What is intersecting lines, parallel lines, perpendicular lines and skew lines.
300
If vertical angles are congruent, what would x be if the equation was: 4x=6x-26
x=52
300
A triangle with no equal sides.
What is a scalene triangle
300
solve for x:
x=7
300
What is the next step in solving this linear equation? 3x+2=x+6
Subtract x from both sides. 2x+2=6
400
If the midpoint cuts into 2 congruent sides, what is value of x? <-------------M---------------> 9x-12 9x-12
x=8
400
Two angles that add up to 90º
What are corresponding angles
400
If its an equiaguteral triangle, what is x?
x=60
400
What is SAS
What is side angle side
400
What type of equation is this: x2 +4x+ 1= 0
What is the quadratic equation
500
Describe: Ray "AB"
What is the line that starts at A, goes through B and continues on.
500
Definition of supplementary
What are 2 angles that add up to 180º
500
A triangle with 3 equal sides
equilateral triangle
500
It states that the sum of the squares of the legs of a right triangle equals the square of the hypotenuse of a right triangle.
What is Pythagorean Theorem
500
Quadratic Equation
What is _______ -b +/- √b2 -4ac x= ------------------- 2a
M
e
n
u