EM-3043
Area of a triangle (½ab sin C)
E Math · Secondary 4 · Medium · Area of a triangle (½ab sin C)
In triangle PQR, PR = 11.2 cm, QR = 8.5 cm and angle PQR = 37°.
Find the area of triangle PQR, correct to 3 significant figures.
Find the area of triangle PQR, correct to 3 significant figures.
- 28.7 cm²
- 23.2 cm²
- 42.9 cm²
- 57.4 cm²
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