Right Triangle Trig

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 is the sine function?

Back

The sine function (sin) of an angle in a right triangle is the ratio of the length of the opposite side to the length of the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the cosine function?

Back

The cosine function (cos) of an angle in a right triangle is the ratio of the length of the adjacent side to the length of the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the tangent function?

Back

The tangent function (tan) of an angle in a right triangle is the ratio of the length of the opposite side to the length of the adjacent side.

Tags

CCSS.HSG.SRT.C.6

Front

What does 'adjacent' mean in the context of a right triangle?

Back

Adjacent refers to the side that is next to the angle of interest in a right triangle.

Tags

CCSS.HSG.SRT.C.6

Front

What does 'opposite' mean in the context of a right triangle?

Back

Opposite refers to the side that is across from the angle of interest in a right triangle.

Front

What is the hypotenuse in a right triangle?

Back

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

Front

How do you find the length of a leg if the hypotenuse and the other leg are known?

Back

Tags

CCSS.8.G.B.8

Front

What is the inverse sine function?

Back

The inverse sine function (sin^-1) is used to find the angle whose sine is a given number.

Tags

CCSS.HSF.TF.B.7