Law of Sines/Cosines/Area Practice

In triangle ABC, m<A = 120, b = 10, and c =18.  What is the area of triangle ABC   1.  to the nearest square inch?

• 52
• 78
• 90
• 156

Tags

CCSS.HSG.SRT.D.9

In triangle ABC, a = 3, b = 5, c = 7.  What is the measure of the largest angle?

• 22
• 38
• 60
• 120

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

The sides of a parallelogram measure 10 cm and 18 cm. One angle of the parallelogram measures 46 degrees. What is the area of the parallelogram, to the nearest square centimeter?

• 65
• 120
• 129
• 162

Tags

CCSS.6.G.A.1

If m<A = 40^o, side b = 10, and side a = 7, how many distinct triangles can be formed?

• 0
• 1
• 2
• 3

Tags

CCSS.7.G.A.2