HKCEE - 2006 - Paper 1 -

Ans: $10\pi\text{ cm}$
The length of $\overparen{AB}$
$\b

Ans: (a) Volume of $X=312\pi\text{ cm}^3$, volume of $Y=1\

Ans: A
By applying the Pythagoras Theorem to $\Delta ACD$, w

Ans: B
The volume of the solid

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Ans: C

Join $OB$. Since $OC$ and $OB$ are radii, then $OB = 2\t

Ans: A
The area of the sector $OXY$

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Ans: (a) $72^\circ$ (b) $320\pi\text{ cm}^2$

1. Let $\angle A

Ans: (a) $96\pi\text{ cm}^3$ (b) (i) $60\pi\text{ cm}^2$ (

Ans: A
Let $OA=r\text{ cm}$. Then we have

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Ans: A
The base area of the right prism

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=

Ans: B
Note that the volume is conserved. Then we have

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Ans: A
Consider $\Delta CDF$ and $\Delta CBF$. With bases $F

Ans: (a) Base radius $=12\text{ cm}$, height$=16\text{ cm

Ans: C
Note that the length and the width of the rectangles is

Ans: C

Let $r\text{ cm}$ and $l \text{ cm}$ be the base radius

Ans: C
The base area of the right prism

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Ans: C
Note that the area of the shaded region is the differen

Ans: D
Since $ABCD$ is a parallelogram, then $AD = BC$. Hence

Ans: (a) (i) $864\pi\text{ cm}^3$ (ii) $608\pi\text{ cm}^

Ans: B
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