Trigonometry with Special Triangles

Front

What is the value of cos(60°)?

Back

½

Tags

CCSS.HSG.SRT.C.7

Front

What is the value of sec(60°)?

Back

2

Tags

CCSS.HSF.TF.A.2

Front

If cosA = √3/2, what is the value of A?

Back

60°

Tags

CCSS.HSF.TF.B.7

Front

If sinA = 1/2, what is the value of A?

Back

30°

Tags

CCSS.HSF.TF.B.7

Front

What is the value of tan(45°)?

Back

1

Tags

CCSS.HSG.SRT.C.7

Front

Define a special triangle in trigonometry.

Back

A special triangle is a triangle with specific angle measures (30°, 60°, 90° or 45°, 45°, 90°) that allows for easy calculation of trigonometric ratios.

Tags

CCSS.2.G.A.1

Front

What are the sine, cosine, and tangent values for a 30° angle?

Back

sin(30°) = 1/2, cos(30°) = √3/2, tan(30°) = 1/√3.

Tags

CCSS.HSG.SRT.C.6

Front

What are the sine, cosine, and tangent values for a 60° angle?

Back

sin(60°) = √3/2, cos(60°) = 1/2, tan(60°) = √3.

Tags

CCSS.HSG.SRT.C.6

Front

What is the relationship between the angles in a 45°-45°-90° triangle?

Back

The legs are equal, and the hypotenuse is √2 times the length of each leg.

Tags

CCSS.8.G.B.8

Front

What is the relationship between the angles in a 30°-60°-90° triangle?

Back

The length of the side opposite the 30° angle is half the hypotenuse, and the length of the side opposite the 60° angle is √3/2 times the hypotenuse.

Tags

CCSS.HSG.CO.C.10