Quiz: Law of Cosines & Heron's Area

Use Law of Cosines to find XZ.

• 16.004 meters

• 544.165 meters

• 34.7 meters

• 1204.165 meters

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Solve for x!

• 72

• 77

• 79

• 75

Two stakes are holding a small blimp in place. Stake A measures an angle of elevation of 49^o and Stake B measures an angle of elevation of 58^o. If the blimp is 148.3 feet from stake A, what is the total length of rope between stake A, the blimp, and stake B?

• 253 feet

• 166 feet

• 280 feet

• 132 feet

If three sides of a triangle are given, the Law of ____ is used to solve the triangle.

• Cosines
• Sines
• Tangent
• Cosecents

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

What is the purpose of Heron's formula?

• To find the angle measure in a triangle.
• To find the area of a non-right triangle.
• To find the side length of a triangle.
• To find the height of a triangle.

Tags

CCSS.6.G.A.1

Find the area of the triangle

• 72 meters squared
• 8.8 meters squared
• 18.09 meters squared
• 70.2 meters squared

Tags

CCSS.HSG.SRT.D.9