Trigonometry
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Free Maths Q & A Practice
1 of 5 free exam-style exercises in this topic
In triangle \(PQR\), the angle at \(R\) is \(90^\circ\), the angle at \(P\) is \(38^\circ\), and the side \(PR\) is \(9.4\text{ cm}\).
P
R
Q
38°
PR = 9.4 cm
QR = ?
Calculate the length of \(QR\), correct to 3 significant figures.
Select one option.
A
\(6.87\text{ cm}\)
B
\(11.9\text{ cm}\)
C
\(7.34\text{ cm}\)
D
\(5.79\text{ cm}\)
E
\(8.02\text{ cm}\)
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