Unit 5 Retest

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Mathematics
•
9th - 10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Triangle Inequality Theorem?
Back
The Triangle Inequality Theorem states that for any triangle, the sum of the lengths of any two sides must be greater than the length of the third side.
2.
FLASHCARD QUESTION
Front
How do you classify a triangle based on its angles?
Back
Triangles can be classified as acute (all angles < 90°), right (one angle = 90°), or obtuse (one angle > 90°).
3.
FLASHCARD QUESTION
Front
What is an obtuse triangle?
Back
An obtuse triangle is a triangle that has one angle greater than 90 degrees.
4.
FLASHCARD QUESTION
Front
What is an acute triangle?
Back
An acute triangle is a triangle where all three angles are less than 90 degrees.
5.
FLASHCARD QUESTION
Front
What is a right triangle?
Back
A right triangle is a triangle that has one angle equal to 90 degrees.
6.
FLASHCARD QUESTION
Front
How do you determine if three lengths can form a triangle?
Back
Use the Triangle Inequality Theorem: For lengths a, b, and c, they can form a triangle if a + b > c, a + c > b, and b + c > a.
7.
FLASHCARD QUESTION
Front
What is the sine function in relation to a right triangle?
Back
In a right triangle, the sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.
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