EM-3053

Sine rule

E Math · Secondary 4 · Medium · Sine rule

In triangle XYZ,

XY = 5.0\text{ cm}

,

YZ = 8.0\text{ cm}

and

\angle XYZ = 37^\circ

. Using the Cosine Rule, find the length of

XZ

correct to 3 significant figures.

$6.02\text{ cm}$
$5.01\text{ cm}$
$7.50\text{ cm}$
$9.60\text{ cm}$

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