Area of Triangles with Sine

Use the Sine Rule to find the missing angle θ

• 27.9^o

• 29.2^o

• 26.8^o

• 45^o

Use the Sine Rule to find the missing side x

• 6.65 cm

• 1.74 cm

• 5.66 cm

• 7.14 cm

Use the Sine Rule to find the missing side x.

• 60.5 mm

• 10.3 mm

• 30.1 mm

• 58.1 mm

Use the Sine Rule to find the missing side x

• 6.39cm

• 12.7cm

• 7.31cm

• 8.13cm

Find the the area of the triangle, correct to 3 sig fig.

• 150 cm²

• 130 cm²

• 87.1 cm²

• 129 cm²

Find the area of the triangle, correct to 3 sig fig.

• 4.05 cm²

• 10.2 cm²

• 10.3 cm²

• 21.0 cm²

In triangle ABC,

AB = 6 cm, BC = 8 cm and

angle ABC =100^o.

Find the area of triangle ABC, correct to 1 dec pl.

• 23.6 cm²

• 12.2 cm²

• 24.0 cm²

• 48.0 cm²

Find the area of the triangle

• 27.6 m²

• 28.0 m²

• 26.9 m²

• 27.5 cm²

Find the area of the triangle

• 72.3 cm²

• 84.4 cm²

• 77.9 cm²

• 78 cm²

Choose the correct working to solve for a.