definitions
Congruent
Equal
a plane figure with four equal straight sides and four right angles.
Square
CD + DE = CE
6 + x + 10 = 3x
18
line segment
measurable part of a line that consists of two points, called endpoints, and all of the points between them. The two endpoints are used to name the segment
AB
<ABC
Bisect
Two lines that cut into each other (go through one another)
Three sided shape
Triangle
Inverse this text: "If the games just a dream, then jackets just in a coma.
Inversed: "If Jackets not in a coma, then the games not just a dream.
What does a point on a line look like
A filled in circle with a capital letter beside it
Appointment times: 8:30 A.M., 9:15 A.M., 10:00 A.M., 10:45 A.M.
Pattern: +45 each time
distance
the distance between two pairs on a line or plane
a plane figure with eight straight sides and eight angles.
Octagon
find the measures of two complementary angles if the measure of the angle is four times the measure of the smaller angle. x + y = 180°
y = 99
x = 81
Label
XY + YZ = XZ
11.3 + 3.8 = XZ
15.1 cm = XZ
Betweenness of points
Substitution
Add.
deductive reasoning
Given facts --> Conclusion
Angle Addition Postulate
divides an angle into two smaller, adjacent angles, the sum of the measures of the two smaller angles equals the measure of the larger angle
a quadrilateral with two pairs of equal-length sides that are adjacent to each other. Its diagonals are perpendicular, and one diagonal bisects the other
Kite
1.) <1 ≅ < 2
2.) <1 = <3
3.) <2 = <4
4.) <3 ≅ <4
1.) Given
2.) Vertical angle
3.) Vertical angle
4.) subtraction
Find the measures of DF
DE = 2 7/10in
EF = 5 9/10in
8 3/5in
True or False
If x = 5 and y = 7, then 3x + 2y = 39
false
vector
quantity with both direction and magnitude (size). A arrow from initial (tail) to terminal (head).
A figure that has 12 sides and is 1800 degrees
Dodecagon
In figure BA and BC are opposite. Rays BD bisects <ABE. If m<ABD=(4x+14) and m<DBE=(8x-32), find m<DBE
60 degrees
Collinear
points are points that lie on the same line. Noncollinear points do not lie on the same line
Ms. Takanawa has three bank accounts. The balances in the accounts are $436.12, $1178.05, and −$0.05. How much money does she have altogether in these accounts?
$1614.12