Trigonometry Basics

In a 45-45-90 right triangle, if one angle is 90 degrees and the other is 45 degrees, the last angle is 45 degrees too.

The inverse of cosine is called the

Tangent (tanθ) is represented by the ratio:

Ms. Justice said we won't need anything further than the trig identities for the midterm.

Ms. Justice will pass out the study guide on which day?

Ms. Justice is planning to have the test on her birthday, which falls on a national holiday:

The inverse of tangent is called the

In a 45-45-90 right triangle, the two legs of the triangle are the same measurement (x).

When I write my trig ratios, Ms. Justice encourages me to reduce the fractions.

In a 30-60-90 right triangle, the shorter leg and the longer leg have two separate measurements.

The Reciprocal Functions are the direct inverses of sine, cosine, and tangent.

In a 30-60-90 right triangle, if one angle is 90 degrees and the other is 30 degrees, the last angle is 30 degrees too.

Ms. Justice said radical form will NOT be on the midterm exam.

The inverse of sine is called the

In a 45-45-90 special right triangle, which measurement do we NOT use?

Ms. Justice has told us when our next test will be.

Cosine (cosθ) is represented by the ratio:

Ms. Justice will let us use our reference sheets on the test.

The Greek letter ________ is used to represent the measure of an acute angle in a right triangle.

In a 30-60-90 right triangle, which measurement do we NOT use?

You find the hypotenuse of a right triangle by looking directly across from the right angle.

Sine (sinθ) is represented by the ratio:

Find the missing side.

You can use the Pythagorean Theorem to find a missing side length of a right triangle.

The Pythagorean Theorem is

Ms. Justice will have us sitting in our assigned seats for the test.

Trigonometric functions/identities are defined by trigonometric _________.

Our test will be the exact same as our study guide.

You find the adjacent side of the right triangle by looking directly across from the angle theta.

Trigonometry is the science of _________ triangles.