Trigonometry Review

Front

What is the definition of a right triangle?

Back

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

Tags

CCSS.4.G.A.2

Front

What is the Pythagorean theorem?

Back

Tags

CCSS.8.G.B.8

Front

What are the primary trigonometric ratios?

Back

The primary trigonometric ratios are sine (sin), cosine (cos), and tangent (tan). They are defined as follows: sin(θ) = opposite/hypotenuse, cos(θ) = adjacent/hypotenuse, tan(θ) = opposite/adjacent.

Tags

CCSS.HSG.SRT.C.6

Front

How do you find the sine of an angle in a right triangle?

Back

To find the sine of an angle, divide the length of the side opposite the angle by the length of the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

How do you find the cosine of an angle in a right triangle?

Back

To find the cosine of an angle, divide the length of the adjacent side by the length of the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

How do you find the tangent of an angle in a right triangle?

Back

To find the tangent of an angle, divide the length of the side opposite the angle by the length of the adjacent side.

Tags

CCSS.HSG.SRT.C.6

Front

What is the relationship between the angles in a triangle?

Back

The sum of the interior angles in a triangle is always 180 degrees.

Tags

CCSS.8.G.A.5

Front

If one angle in a right triangle is 30 degrees, what is the measure of the other non-right angle?

Back

The other non-right angle would be 60 degrees, since 30 + 60 + 90 = 180 degrees.

Tags

CCSS.7.G.B.5

Front

What is the formula to find the area of a triangle?

Back

Tags

CCSS.6.G.A.1

Front

How do you find the missing side of a right triangle using trigonometric ratios?

Back

You can use the appropriate trigonometric ratio (sin, cos, or tan) based on the known angle and the sides you have.

Tags

CCSS.HSG.SRT.C.8