What is the largest angle in a triangle related to?

Understanding the Law of Cosines

Interactive Video
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Mathematics
•
9th - 12th Grade
•
Hard

Mia Campbell
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The shortest side
Any side
The longest side
The middle side
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which angle is labeled as 'A' in the triangle?
The angle opposite side A
Any angle
The angle opposite side B
The angle opposite side C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the Law of Cosines used in this problem?
a^2 = b^2 + c^2 - 2bc cos A
a^2 = b^2 + c^2 + 2bc cos A
a^2 = b^2 - c^2 - 2bc cos A
a^2 = b^2 + c^2 - 2bc sin A
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of 26 squared?
529
100
676
460
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What operation is performed to isolate cosine A in the equation?
Subtraction
Multiplication
Addition
Division
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the approximate measure of angle A?
85.9 degrees
95.9 degrees
105.9 degrees
115.9 degrees
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which trigonometric function is used to find angle A from cosine A?
Sine
Inverse Cosine
Tangent
Inverse Sine
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