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Problems
Mathematics
Mathematics
Problem
Triangle
A
B
C
ABC
A
B
C
is similar to triangle
A
′
B
′
C
′
A'B'C'
A
′
B
′
C
′
. If
A
B
=
7
cm
AB=7\,\text{cm}
A
B
=
7
cm
,
A
′
B
′
=
21
cm
A'B'=21\,\text{cm}
A
′
B
′
=
21
cm
and
A
C
=
9
cm
AC=9\,\text{cm}
A
C
=
9
cm
, calculate
A
′
C
′
A'C'
A
′
C
′
.
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