What is the relationship between the sides of a 45-45-90 triangle?

In a 45-45-90 triangle, the lengths of the legs are equal, and the length of the hypotenuse is $$\text{leg} \times \text{√2}$$ .

How do you calculate the area of a right triangle?

The area of a right triangle can be calculated using the formula: $$\text{Area} = \frac{1}{2} \times \text{base} \times \text{height}$$ .

What is the formula for the hypotenuse in a right triangle?

The hypotenuse can be found using the Pythagorean theorem: $$c = \text{√}(a^2 + b^2)$$ .

What is the definition of an angle in standard position?

An angle in standard position has its vertex at the origin and its initial side along the positive x-axis.

What is the definition of complementary angles?

Complementary angles are two angles whose measures add up to 90 degrees.

What is the definition of supplementary angles?

Supplementary angles are two angles whose measures add up to 180 degrees.

What is the definition of a tangent line?

A tangent line to a circle is a straight line that touches the circle at exactly one point.

What is the definition of a secant line?

A secant line is a line that intersects a circle at two points.

Right Triangle Unit 5 Exam Flashcards

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.

2.

FLASHCARD QUESTION

Front

What is the Pythagorean theorem?

Back

3.

FLASHCARD QUESTION

Front

How do you find the length of a side in a right triangle?

Back

You can use the Pythagorean theorem or trigonometric ratios (sine, cosine, tangent) depending on the information given.

4.

FLASHCARD QUESTION

Front

What is the sine of an angle in a right triangle?

Back

5.

FLASHCARD QUESTION

Front

What is the cosine of an angle in a right triangle?

Back

6.

FLASHCARD QUESTION

Front

What is the tangent of an angle in a right triangle?

Back

7.

FLASHCARD QUESTION

Front

What is the relationship between the sides of a 30-60-90 triangle?

Back

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