Vocabulary
A flat surface made up of points that extend indefinitely in all directions.
What is a Plane.
The distance between A(6,4) and B(4,2).
What is square root of 8 or 2.83?
A transformation that flips a figure across a point or a line.
What is a reflection?
A line that intersects parallel lines.
What is a transversal?
The three shapes that are parallelograms.
What are rectangle, square, and rhombus?
When two figures have the same measure.
What is congruent?
If X is the midpoint of line WY, WY = 10x and WX = 4x+4, solve for x.
What is x = 4?
1/2(10x)=4x+4
A transformation that moves all the points of one figure the same distance and direction.
What is translation?
The angles on the same side of s transversal on the inside of the parallel lines.
What are consecutive interior or same side interior?
The lines that are perpendicular in a rhombus.
What are diagonals?
Two lines that intersect to form right angles.
What are perpendicular lines?
The unit of angle measure.
What is degree?
What are the coordinates for A(3,1) B(5,6) and C(-4,2) after a reflection across the y-axis.
What is A(-3,1) B(-5,6) and C(4,2)?
Ry-axis (notation)
(x,y) -> (-x,y) (rule)
Angles on the opposite side of a transversal on the outside of the parallel lines.
What are alternate exterior angles?
The area of a trapezoid with bases of 12 &17 ft and height of 7ft.
What is 101.5 ft2?
A=1/2h(b1+b2)
Congruent angles that are directly across from each other when lines intersect.
What are vertical angles?
The line that creates congruent angles.
What is an angle bisector?
The rule, notation or movement that applies to the translation A(5,6) -> A'(12,-2).
What is (x,y) -> (x + 7, y - 8) (rule)?
T<7, -8> (notation)
right 7, down 8 (movement)
The rules for the slopes of parallel and perpendicular lines.
What is parallel lines have the same slope and perpendicular lines have opposite reciprocal slope?
The measure of an exterior angle of a nonagon.
What is 40 degrees?
360/n
This is the intersection of two rays at a common endpoint.
What is an angle?
If <1 and <2 form a linear pair and <1 is 3 more than twice the measure of <2, find the measure of <2.
What is 59ยบ?
if <2 = x, then
<1 + <2 = 180
(2x + 3) + x = 180
What rule reflects a figure across the x-axis?
What is - (x,y) -> (x, -y) (rule)?
Rx-axis (notation)
Determine line JK and line MO's relationship if J(3,2) K(-6,5) and M(6, -7) O(10,5).
What is perpendicular?
The total measure of interior angles in a 15-gon.
What is 156 degrees?
(n-2)/n x 180