Mathematics (Syllabus D) 4024/22 — October/November 2012

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Topics Algebra and Graphs · Mensuration · Trigonometry · Number · Geometry · Statistics · +2 more

Q1TrigonometryFree sample

Fig. 1

In triangle $ABC$ , $AB = 10\,\text{m}$ , $BC = 6.5\,\text{m}$ and $A\hat{B}C = 90°$ .

(a)

Find $A\hat{C}B$ .

______

(b)

Fig. 2

$D$ is the point on $BA$ produced such that $CD = 16.4\,\text{m}$ .

(i)

Find $AD$ .
Give your answer in metres and centimetres, correct to the nearest centimetre.

______ $\text{m}$ ______ $\text{cm}$

(ii)

Find $D\hat{C}B$ .

______

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