Areas Trigonometry

Find the value of x. Round off the answer to one decimal place.

• 35.3 ft

• 36.3 ft

• 37.3 ft

• 38.3 ft

Which trigonometric ratio should you use?

• Tangent Ratio

• Sine Ratio

• Cosine Ratio

• Any ratio

_{^{Find the missing side}}

• 9

• 41

• 6.4

• 6.2

The area of triangle ABC is 66 cm2, sinθ = 12/37 and cosθ = 35/37. Find the length of BC. 

• 7.5 cm

• 4.2 cm

• 8.1 cm

• 5.3 cm

The area of triangle ABC is 66 cm2, sinθ = 12/37, cosθ = 35/37 and BC = 7.5 cm.  Find the size of angle C. 

• 42.7 (degrees)

• 53.1 (degrees)

• 58.1 (degrees)

• 46.2 (degrees)

Find the value of x to 2 significant figures.

• 19 cm

• 10 cm

• 12 cm

• 16 cm

Find the length of MN.

• 16.4 cm

• 21.2 cm

• 12.3 cm

• 18.1 cm

SR = and the areas of the two triangles are equal to each other. Find RQ.

• 23.1 cm

• 43.2 cm

• 21.4 cm

• 49.2 cm