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Z04 Math
Question 9
2021 April(Z04) Math Question 9
Similar Triangles & Types of Triangles
- Similar Triangles
Choice D
{
A
C
}
{
A
E
}
=
{
A
B
}
{
A
D
}
\frac\{AC\}\{AE\}=\frac\{AB\}\{AD\}
A
{
C
}
{
A
E
}
=
A
{
B
}
{
A
D
}
{
A
C
}
{
16
}
=
{
8
+
7
+
6
}
{
8
}
=
{
2
1
}
{
8
}
\frac\{AC\}\{16\}=\frac\{8+7+6\}\{8\}=\frac\{21\}\{8\}
A
{
C
}
{
16
}
=
8
{
+
7
+
6
}
{
8
}
=
2
{
1
}
{
8
}
A
C
×
8
=
16
×
21
AC\times8=16\times21
A
C
×
8
=
16
×
21
A
C
=
2
×
21
=
42
AC=2\times21=42
A
C
=
2
×
21
=
42
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