Law of Sine and Cosines

The sine again cosine rules are sometimes called laws. Which law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

Find the missing angle θ

• 27.9^o

• 29.2^o

• 26.8^o

• 45^o

Find the area of the triangle

• 72.3cm²

• 84.4cm²

• 77.9cm²

• 78cm²

Find the Area of a triangle with two sides that measure 6 m and 8 m with an included angle of 137°.

• 17.8m²

• 14.6m²

• 16.4m²

• 12.9m²

Find area of triangle: a=4.7 c=12.4 B= 47.33°

• 43.1 units²

• 71.0 units²

• 21.43 units²

Find the exact area of the triangle

• 13.9 in²

• 13.8 in²

• 14.0 in²

• 27.9 in²

Which Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

Which Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

Which Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

Mr. Creole must find the distance from Point A to Point B on opposite sides of a lake. He locates Point C that is 4.15 miles from point A and 5.33 miles from Point B. He measures the angle ACB to be 37^o. Find the distance from point A to point B.

• 3.72 miles

• 6.18 miles

• 10.30 miles

• 3.21 miles