3.TEST Trig. Chapter 3.1-3
Flashcard
•
Mathematics
•
10th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the conversion formula from radians to degrees?
Back
Degrees = Radians × (180/π)
2.
FLASHCARD QUESTION
Front
Convert 7π/4 radians to degrees.
Back
315 degrees
3.
FLASHCARD QUESTION
Front
What is the formula for the area of a sector in a circle?
Back
Area = (θ/360) × πr², where θ is the angle in degrees and r is the radius.
4.
FLASHCARD QUESTION
Front
Find the area of a sector with a radius of 10 cm and an angle of 60 degrees.
Back
Area = (60/360) × π(10)² = 17.5 cm²
5.
FLASHCARD QUESTION
Front
What is the conversion formula from degrees to radians?
Back
Radians = Degrees × (π/180)
6.
FLASHCARD QUESTION
Front
Convert 225 degrees to radians.
Back
5π/4 radians
7.
FLASHCARD QUESTION
Front
What is the cosine of 7π/4 radians?
Back
cos(7π/4) = √2/2
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