How to use the inverse cosine function to determine the missing angle

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Mathematics
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving for an angle in a right triangle?
Use the tangent function
Calculate the sine
Label the hypotenuse
Find the opposite side
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which side is labeled as the adjacent side in a right triangle?
The longest side
The side next to the angle and hypotenuse
The side opposite the angle
The side with the smallest length
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When should you use the cosine function in a right triangle?
When you know the opposite and adjacent
When you know the adjacent and hypotenuse
When you know the opposite and hypotenuse
When you know all three sides
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for finding angle B using cosine?
cos(B) = hypotenuse/adjacent
cos(B) = adjacent/opposite
cos(B) = adjacent/hypotenuse
cos(B) = opposite/hypotenuse
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the angle B after calculating cos(B) = 25/30?
Multiply by 30
Subtract 25 from 30
Use the inverse cosine function
Use the sine function
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