EM-3086
Cosine rule
E Math · Secondary 4 · Medium · Cosine rule
In a triangle XYZ, sides XY = 9.0 cm, YZ = 12.0 cm and angle .
Find the length of XZ, correct to 3 significant figures.
Find the length of XZ, correct to 3 significant figures.
- 6.42 cm
- 8.81 cm
- 10.5 cm
- 13.5 cm
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