Trig Ratios

Front

What are the three primary trigonometric ratios?

Back

Sine (sin), Cosine (cos), Tangent (tan)

Tags

CCSS.HSG.SRT.C.6

Front

What does 'Soh Cah Toa' stand for?

Back

Soh: sin = opposite/hypotenuse, Cah: cos = adjacent/hypotenuse, Toa: tan = opposite/adjacent

Tags

CCSS.HSG.SRT.C.6

Front

If sin(θ) = opposite/hypotenuse, what is the opposite side if the hypotenuse is 10 and sin(θ) = 0.6?

Back

Opposite = 0.6 * 10 = 6

Tags

CCSS.HSG.SRT.C.8

Front

What is the value of cos(0°)?

Back

1

Tags

CCSS.HSF.TF.A.2

Front

What is the value of tan(45°)?

Back

1

Tags

CCSS.HSG.SRT.C.7

Front

In a right triangle, if one angle is 30°, what is the ratio of the opposite side to the hypotenuse?

Back

1/2 (sin(30°) = 1/2)

Tags

CCSS.HSG.SRT.C.6

Front

What is the relationship between the sine and cosine of complementary angles?

Back

sin(θ) = cos(90° - θ) and cos(θ) = sin(90° - θ)

Tags

CCSS.HSG.SRT.C.7

Front

If the adjacent side is 5 and the hypotenuse is 13, what is cos(θ)?

Back

cos(θ) = adjacent/hypotenuse = 5/13

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula for finding the tangent of an angle?

Back

tan(θ) = opposite/adjacent

Tags

CCSS.HSG.SRT.C.6

Front

In a right triangle, if the opposite side is 8 and the adjacent side is 6, what is tan(θ)?

Back

tan(θ) = 8/6 = 4/3

Tags

CCSS.HSG.SRT.C.6