Trig ratios

Front

What is the definition of Trigonometric Ratios?

Back

Trigonometric ratios are the ratios of the lengths of the sides of a right triangle. They are used to relate the angles of the triangle to the lengths of its sides.

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula for Sine (SIN) of an angle?

Back

SIN X = Opposite side / Hypotenuse

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula for Cosine (COS) of an angle?

Back

COS X = Adjacent side / Hypotenuse

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula for Tangent (TAN) of an angle?

Back

TAN X = Opposite side / Adjacent side

Tags

CCSS.HSG.SRT.C.6

Front

If the opposite side is 3 and the hypotenuse is 5, what is SIN X?

Back

SIN X = 3/5 = 0.6

Tags

CCSS.HSG.SRT.C.6

Front

If the adjacent side is 4 and the hypotenuse is 5, what is COS X?

Back

COS X = 4/5 = 0.8

Tags

CCSS.HSG.SRT.C.6

Front

If the opposite side is 3 and the adjacent side is 4, what is TAN X?

Back

TAN X = 3/4 = 0.75

Tags

CCSS.HSG.SRT.C.6

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Tags

CCSS.8.G.B.8

Front

How do you find the missing side of a right triangle using trigonometric ratios?

Back

Use the appropriate trigonometric ratio (SIN, COS, TAN) based on the known sides and the angle.

Tags

CCSS.HSG.SRT.C.8

Front

What is the value of SIN 30°?

Back

SIN 30° = 1/2 = 0.5