In the figure, $AB=12\text{ cm}$, $BC=5\text{ cm}$ and angle $ABC=90^\circ$. Find the value of

Question

In the figure, $AB=12\text{ cm}$, $BC=5\text{ cm}$ and angle $ABC=90^\circ$. Find the value of $\cos\angle ACD$.[2] If $A$, $B$ and $C$ lie on the circumference of a circle, write down the radius of the circle.[1]

Accepted Answer

(a) $-\frac5{13}$ (b) $6.5\text{ cm}$

2025 GESS PRELIMS P1 Q14

2025 GESS PRELIMS P1 Q14

Solution:

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