Exploring Trigonometric Ratios: Sine, Cosine, Tangent

What is a trigonometry ratio?

• A formula to find the height of a triangle.

• A function that relates the angles of a triangle to its sides.

• A method to calculate the area of a triangle.

• A ratio between the lengths of two sides of a triangle.

Tags

CCSS.HSG.SRT.C.6

How many sides does the example triangle ABC have?

• Five

• Four

• Three

• Two

What is the hypotenuse length of the example triangle ABC?

• 3 units

• 4 units

• 5 units

• 6 units

Tags

CCSS.8.G.B.8

What does the sine ratio represent?

• Hypotenuse over opposite

• Opposite over hypotenuse

• Opposite over adjacent

• Adjacent over hypotenuse

Tags

CCSS.HSG.SRT.C.6

What does the cosine ratio represent?

• Adjacent over hypotenuse

• Opposite over adjacent

• Hypotenuse over adjacent

• Opposite over hypotenuse

Tags

CCSS.HSG.SRT.C.6

What does the tangent ratio represent?

• Adjacent over hypotenuse

• Hypotenuse over opposite

• Opposite over adjacent

• Opposite over hypotenuse

Tags

CCSS.HSG.SRT.C.6

Can the trigonometry ratios be applied to any angle in a triangle?

• Yes, to all angles equally.

• No, only to the right angle.

• No, only to acute angles.

• Yes, but with different formulas.

Tags

CCSS.HSG.SRT.C.6

What is the sine of angle A?

• 4/5

• 3/5

• 5/4

• 3/4

Tags

CCSS.HSG.SRT.C.6

What is the cosine of angle A?

• 3/5

• 4/5

• 5/3

• 3/4

Tags

CCSS.HSG.SRT.C.6

What is the tangent of angle A?

• 4/3

• 3/4

• 5/3

• 3/5

Tags

CCSS.HSG.SRT.C.6