18
What is the reason for statement in the given proof?
Ο Α.
definition of midpoint
Given: AABCProve: The medians of AABC are concurrent.
U
ов.
definition of slope
B' (2 2s)
OC. Parallel lines have equal slopes.
6
OD.
using point-slope formula
4
D'
2
All0.00
-2
C' (2,0)
14 16
-4
0
2
4
6 F
2.00
10
12
Statement
Reason
1. Define the vertices of AABC to have
unique points A(X1, 91), B(x2- y2), and
given
|C(x3, Y3).
in the coordinate plane,
any point can be moved
2. Use rigid transformations to to any other point using
transform AABC to AA'B'C so that A' is rigid transformations
at the origin and A'C' lies on the x- and any line can be
axis in the positive direction. moved to any other line
using rigid
transformations.
3. Any property that is true for AA'B'C' definition of
will also be true for AABC.
congruence
4. Let r, s, and t be real numbers such
that the vertices of AA'B'C' are A'(0, 0), defining constants
B'(2r, 2s), and C'(2t, O).
5. Let D'. E', and F be the midpoints of
A'B', B'C' and A'C' respectively.
defining points
6. D' = (r, s)
E' = (r + t, s)
definition of midpoints
F = (t,0)
AB=-*
7. slope of
2
21-
slope of 2=
8. equation of line A'E': Y=**
equation of line B'F',
23
making use of point-
y=2=X+2r-1
slope formula
slope of
B'p
C'D
>
2st
omg what happend to your question? if you could edit this question i can
step-by-step explanation:
Answer from: Quest
answer: no, but if it does it's a obvious pattern.
step-by-step explanation:
Answer from: Quest
what's the question?
step-by-step explanation:
there is no question.
Answer from: Quest
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Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.