What is a right triangle?
Finding Missing Sides and Angles in Right Triangles

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•
Mathematics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A right triangle is a triangle that has one angle measuring 90 degrees.
2.
FLASHCARD QUESTION
Front
What is the Pythagorean theorem?
Back
The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the other two sides (a and b): a² + b² = c².
3.
FLASHCARD QUESTION
Front
What is the sine function?
Back
The sine function (sin) is a trigonometric function defined as the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle.
4.
FLASHCARD QUESTION
Front
What is the cosine function?
Back
The cosine function (cos) is a trigonometric function defined as the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle.
5.
FLASHCARD QUESTION
Front
What is the tangent function?
Back
The tangent function (tan) is a trigonometric function defined as the ratio of the length of the opposite side to the length of the adjacent side in a right triangle.
6.
FLASHCARD QUESTION
Front
How do you find the length of a missing side in a right triangle?
Back
You can use the Pythagorean theorem or trigonometric ratios (sine, cosine, tangent) depending on the information given.
7.
FLASHCARD QUESTION
Front
What is the formula for sine in a right triangle?
Back
sin(θ) = opposite/hypotenuse.
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