Intro to Geometry
what is the ruler postulate?
D=|x2 - x1|
Triangle Types and Angle Measures?
Types: Scalene, Isosceles, and Equilateral.
Angle Measure: Acute, Right, Obtuse, and Equiangular.
Opposite angles are congruent.
True or False?
True
A point is located at (-2,3). If it's translated 2 units down and 6 units to the right, what is the new coordinates?
(4,1)
What is a axiom?
a rule accepted without proof.
What is the Distance Formula?
D= square root of (x2-x1)2+(y2-y1)2
If Angle 1 is 57 and Angle 2 is 36, then what is Angle 3 of the triangle?
57+36= 93/180-93=87
Angle 3=87
If a Angle of a parallelogram is 145, then what is the degree of the opposite Angle?
145
What is the translation over the y-axis?
(-x,y)
What is a triangle?
A triangle is a polygon that has 3 sides, 3 angles, and 3 vertices.
What is midpoint formula?
(x1+x2/2 , y1+y2/2)
What do you use to prove Triangle Congruence?
SSS/SAS/ASA/AAS/HL
If AB of a square is 6ft, then what is the measure of the other sides?
6ft
What is the 180 degree translation?
(-x,-y)
What is a parallelogram?
A parallelogram is a quadrilateral with both pairs of opposite sides.
What's the Angle Addition Postulate?
ADB+BDC=ADC
Parts of Isosceles Triangle?
Legs, Vertex Angle, Base, and Base Angles.
Midsegment Formula?
M= 1/2 (B1+B2)
What is the Dilation Equation?
(Ax , By)
What is a Transformation?
A movement of an object without changing the shape.
What is the slope?
rise over run.
Y2-Y1/X2-X1
If the vertex Angle is 180, then what is the base angles?
180-108=72/72 divided by 2= 36
Both base angles are 36.
Do kites have parallel side?
No.
Solve 80/48=x/60
48x= 4800
x= 100
What is a theorem?
A statement that can be proven true using facts already known.