What is a right angle?
Right Angle Trigonometry Basics

Flashcard
•
Mathematics
•
7th - 12th Grade
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
Back
A right angle is an angle that measures exactly 90 degrees.
2.
FLASHCARD QUESTION
Front
What do we call the longest side of a right triangle?
Back
The longest side opposite the right angle is called the hypotenuse.
3.
FLASHCARD QUESTION
Front
What is the ratio for tangent (tan) in a right triangle?
Back
The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.
4.
FLASHCARD QUESTION
Front
In a right triangle, which side is opposite the right angle?
Back
The side opposite the right angle is called the hypotenuse.
5.
FLASHCARD QUESTION
Front
What is the formula for finding the hypotenuse in a right triangle?
Back
6.
FLASHCARD QUESTION
Front
What is the sine (sin) of an angle in a right triangle?
Back
The sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.
7.
FLASHCARD QUESTION
Front
What is the cosine (cos) of an angle in a right triangle?
Back
The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse.
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