SOH CAH TOA

Front

What does SOH CAH TOA stand for in trigonometry?

Back

SOH: Sine = Opposite/Hypotenuse, CAH: Cosine = Adjacent/Hypotenuse, TOA: Tangent = Opposite/Adjacent.

Tags

CCSS.HSG.SRT.C.8

Front

What type of triangle is used when applying SOH CAH TOA?

Back

Right triangle.

Tags

CCSS.1.G.A.1

CCSS.2.G.A.1

Front

How do you calculate the cosine of an angle in a right triangle?

Back

Cosine of an angle = length of adjacent side / length of hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

If cos(θ) = 0.5, what is the length of the adjacent side if the hypotenuse is 10?

Back

Adjacent side = cos(θ) * hypotenuse = 0.5 * 10 = 5.

Tags

CCSS.HSG.SRT.C.8

Front

What is the sine of a 30-degree angle?

Back

sin(30°) = 1/2.

Tags

CCSS.HSG.SRT.C.7

Front

How do you find the length of a side using the sine function?

Back

Length of opposite side = sin(θ) * hypotenuse.

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Front

What is the tangent of an angle in a right triangle?

Back

Tangent of an angle = length of opposite side / length of adjacent side.

Tags

CCSS.HSG.SRT.C.6

Front

If the opposite side is 4 cm and the adjacent side is 3 cm, what is the tangent of the angle?

Back

tan(θ) = opposite/adjacent = 4/3.

Tags

CCSS.HSG.SRT.C.6

Front

What is the relationship between the sides of a right triangle and the Pythagorean theorem?

Back

a² + b² = c², where c is the hypotenuse and a, b are the other two sides.

Tags

CCSS.8.G.B.8

Front

How do you round a number to the nearest tenth?

Back

Look at the hundredths place; if it's 5 or more, round up.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3