HKCEE - 2006 - Paper 1 -

Ans: $\angle ABE=70^\circ$, $\angle BCD=40^\circ$
Since

Ans: D
In $\Delta ABE$ and $\Delta ACD$,

$\begin{array}{ll

Ans: D
I must be true. Note that $\Delta ABC$ is an isosceles t

Ans: $x=70^\circ$, $y=20^\circ$, $z=20^\circ$
Since $DE

Ans: D
Note that the sum of the exterior angles of polygon is $

Ans: B
Add a straight line $FX$ such that \\ $AB//FX//CD$. Si

Ans: C
The centroid of $\Delta ABC$ must lie inside $\Delta A

Ans: $x=33^\circ$, $y=76^\circ$, $z=28^\circ$
Since $AB

Ans: B

Let $\angle ADC = y$. Add a point $E$ on $AB$ such that $E

Ans: D

Add a horizontal line and the line divides $b$ into $b_

Ans: (b) (ii) $\Delta CBA$, $\Delta CEF$

1. In $\Delta ACD$,

   $\

Ans: A
Consider $\Delta BCE$, since $BC=CE$, then $\angle C

Ans: A
$\begin{array}{rcl}
(n-2)\times 180^\circ &

Ans: C

The extension of $AB$ intersects $CE$ at $D$. Since $A

Ans: (a) $126^\circ$

Add a straight line $BF$ such that $AE/

Ans: A
I must be true. The 9 planes of reflection are shown bel

Ans: A
$\begin{array}{rcl}
\angle ACD & = & 180^

Ans: C
The interior angle of a regular 24-sided polygon

$\be

Ans: (b) $42^\circ$

1. In $\Delta ABD$ and $\Delta ACD$,

   $\bec

Ans: (c) $10$

1. In $\Delta ABP$ and $\Delta PCD$,

   $\begin{arr