Trigonometry

Identifying Sides

100

TRUE or FALSE: The hypotenuse in a right triangle changes depending on the angle you use.

FALSE! The hypotenuse is always the same!

200

TRUE or FALSE: The opposite and adjacent sides depend on the angle you use.

TRUE!

300

What does adjacent mean?

Adjacent means "next to" 

400

How do you know which side is opposite?

it is across from the angle

500

TRUE or FALSE: The opposite and adjacent sides are the legs of the right triangle.

TRUE!

Sin, Cos, Tan

100

What is the nine letter acronym which helps us remember the trig ratios?

SOHCAHTOA!

200

What two sides does Sine use?

Opposite and Hypotenuse

300

Which trig function would you use if you only knew the hypotenuse and adjacent sides?

Cosine

400

What is cos(x)?

21/35 or 3/5 (simplified form)

500

Find Sin(x). Simplify the fraction.

12/15 simplifies to 4/5

Solving for Sides

100

Find cos(63) to the nearest hundredth (2 decimal places).

0.45

200

Which ratio could be used to solve for x?

tan(27) = x/10

300

Find side E in the picture.

E = 14

400

Find the missing side, a. Round to the nearest whole number.

a = 16.3 rounds to 16

500

Find the missing side, x. Round to the nearest whole number.

x = 27.4 rounds to 27

Teacher Trivia

100

The classes Finfrock teaches

Integrated, Geometry, Statistics

200

The name of my baby

Ellis

300

Name of one of my dogs

(Hint: Family Guy)

Brian

400

Highest degree I've earned

Masters of Arts

500

Country in Africa I went to school/worked

Ghana

Pythagorean Theorem

100

TRUE or FALSE: The Pythagorean Theorem can be used with any type of triangle.

True

200

What is the Pythagorean Theorem?

a² + b² = c²

300

Find the missing side length. 

Triangle with sides: 3, 4 and ....

5

400

Type of triangle with sides 1, 2, 3

obtuse

500

Which letter is the hypotenuse

C