Law of Sines, Cosines and Area

Find the length of Side BC.

• 33

• 24

• 12

• 29

The sides of a triangle are 15 cm, 17 cm and 8 cm. What is its area?

• 1245.87 square meters

• 3288.92 square meters

• 3500 square meters

• 6577.85 square meters

in triangle ABC, the measure of angle c = 30 and a = 8.  If the area of the triangle is 12, what is the length of side b?

• 6

• 8

• 3

• 4

Which Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

Identify the Law of Sines

• Sin²x + Cos²x =1

• Sin(A)/a = Sin(B)/b = Sin(C)/c

• Sin(A)Sin(B)Sin(C) = 1

• Soh-Cah-Toa

• 52.1 sq cm

• 89.5 sq cm

• 47.6 sq cm

• 15.2 sq cm

Find Area of ABC

• 223.6 units²

• 73.1 units²

• 52.7 units²

• 3.3 units²

What is the area of a triangle with two sides that measure 5 cm and 8 cm with an included angle of 39°?

• 15.9cm²

• 12.6cm²

• 15.3cm²

• 16.2cm²

Which Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Exponents