In a right triangle, if one angle is 45 degrees, what is the tangent of that angle?

The tangent of 45 degrees is 1, since $$\frac{opposite}{adjacent} = 1$$ .

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

In a 30-60-90 triangle, the sides are in the ratio 1 : $$\frac{\text{√3}}{2}$$ : 2.

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

In a 45-45-90 triangle, the sides are in the ratio 1 : 1 : $$\text{√2}$$ .

How do you find the length of the hypotenuse using the Pythagorean theorem?

The Pythagorean theorem states that $$a^2 + b^2 = c^2$$ , where c is the hypotenuse.

What is the value of tangent for 90 degrees?

The tangent of 90 degrees is undefined.

Basic Trig Ratios

Flashcard

•

Mathematics

•

9th - 12th Grade

•

Practice Problem

•

Hard

•

CCSS

HSG.SRT.C.6, HSG.SRT.C.7, HSG.CO.C.10

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FLASHCARD QUESTION

Front

What is the hypotenuse of a right triangle?

Back

The hypotenuse is the longest side of a right triangle, opposite the right angle.

FLASHCARD QUESTION

Front

What is the sine ratio?

Back

Tags

CCSS.HSG.SRT.C.6

FLASHCARD QUESTION

Front

What is the cosine ratio?

Back

Tags

CCSS.HSG.SRT.C.6

FLASHCARD QUESTION

Front

What is the tangent ratio?

Back

Tags

CCSS.HSG.SRT.C.6

FLASHCARD QUESTION

Front

What mnemonic helps remember the definitions of the trig ratios?

Back

SOH CAH TOA helps remember: SOH = Sine = Opposite/Hypotenuse, CAH = Cosine = Adjacent/Hypotenuse, TOA = Tangent = Opposite/Adjacent.

Tags

CCSS.HSG.SRT.C.6

FLASHCARD QUESTION

Front

In a right triangle, if one angle is 30 degrees, what is the sine of that angle?

Back

Tags

CCSS.HSG.SRT.C.6

FLASHCARD QUESTION

Front

In a right triangle, if one angle is 60 degrees, what is the cosine of that angle?

Back

Tags

CCSS.HSG.SRT.C.7

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