(Unit 5) Trigonometry

TRIGONOMETRY DEALS WITH THE RELATIONSHIPS BETWEEN

• ANGLES
  AND SIDES OF TRIANGLES.

• SIDES OF TRIANGLES.

• LINES OF TRIANGLES.

• TYPES OF TRIANGLES.

IN A RIGHT-ANGLED TRIANGLE, THERE ARE THREE MAIN TRIGONOMETRIC RATIOS: (Select all that apply)

• SINE (SIN)

• SI (SIN)

• COSINE (COS)

• TANGENT (TAN)

THE HYPOTENUSE IS THE:

• SHORTEST SIDE

• OPPOSITE SIDE

• LEG

• LONGEST SIDE

ADJACENT IS THE SIDE
THAT IS “ADJACENT” OR
________ THE ANGLE.

• BENEATH

• ABOVE

• BESIDE

• BELOW

OPPOSITE IS THE SIDE
THAT IS “OPPOSITE” OR
________ FROM THE ANGLE.

• BENEATH

• AWAY

• BELOW

• TO THE RIGHT OF

N A RIGHT-ANGLED TRIANGLE, ONE ANGLE IS ________

(A RIGHT ANGLE).

• 90 DEGREES

• 180 DEGREES

• 60 DEGREES

• 45 DEGREES

THE HYPOTENUSE IS THE LONGEST SIDE AND IS ________ OF THE RIGHT ANGLE.

• OPPOSITE

• BELOW

• BESIDE

• TO THE LEFT OF

Θ THIS SIGN IS APART OF TRIGONOMETRY RATIOS AND REPRESENTS WHAT? (GREEK LETTER)

• THETA

• DELTA

• ALPHA

• RHO

SINE = __________

• OPPOSITE / HYPOTENUSE

• HYPOTENUSE / OPPOSITE

• OPPOSITE / ADJACENT

• ADJACENT / HYPOTENUSE

COSINE = ______

• HYPOTENUSE / OPPOSITE

• ADJACENT / HYPOTENUSE

• OPPOSITE / ADJACENT

• ADJACENT / OPPOSITE