Example problems VI — task. Mathematics CBSE, Class 10.

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1. In

$\triangle ABC$ , right-angled at

$B$ ,

$AB = 5 \ cm$ and

$\angle ACB = 30^{\circ}$ . Determine the lengths of the sides

$BC$ and

$AC$ .

Answer:

$BC =$

$i \sqrt{i} cm$

$AC =$

$i cm$

2. In

$\triangle PQR$ , right-angled at

$Q$ ,

$PQ = 3 \ cm$ and

$PR = 6 \ cm$ . Determine

$\angle QPR$ and

$\angle PRQ$ .

Answer:

$\angle QPR =$

$i °$

$\angle PRQ =$

$i °$

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