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Mathematics
Mathematics
Problem
For the points
A
(
1
,
2
,
5
)
A(1, 2, 5)
A
(
1
,
2
,
5
)
,
B
(
4
,
6
,
5
)
B(4, 6, 5)
B
(
4
,
6
,
5
)
and
C
(
7
,
10
,
5
)
C(7, 10, 5)
C
(
7
,
10
,
5
)
, answer the following: a. (i) Find the lengths
A
B
AB
A
B
,
B
C
BC
B
C
and
A
C
AC
A
C
. b. (ii) Hence, show that the points
A
A
A
,
B
B
B
and
C
C
C
are collinear.
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