Trigonometric Ratios
Labeling Triangles
Finding a missing side
Finding a missing angle
Triangle Related
100

What is the trigonometric ratio for Sine?

O/H (Opposite/Hypotenuse)

100

Label the side of this triangle that you would NOT use to find the missing angle:(opposite, hypotenuse and/or adjacent)

ADJACENT

100

Which trig operation would you use to solve for x?

Sine or Sin

100

Which trig operation would be used to find the missing angle?

Cosine

100

How much do the 3 interior angles of a triangle add up to?

1800

200
What is the trigonometric ratio for Cosine?

A/H (Adjacent/Hypotenuse)

200

Label the side of this triangle that you would NOT use to find the missing angle:(opposite, hypotenuse and/or adjacent)

HYPOTENUSE

200

Calculate the tangent of 1/2 to four decimal places.


.0087

200

Write the trig equation to find the missing angle.

tan theta = 5/4

200

Write Pythagoras' Formula

a2 + b2 = c

300

What is the trigonometric ratio for Tangent?

O/A (Opposite/Adjacent)

300

Label the side of this triangle that you would NOT use to find the missing angle:(opposite, hypotenuse and/or adjacent)


OPPOSITE

300

Write the equation to find x.


tan(52^o)=x/4

300

Calculate sin-1(2/3) to the nearest tenth.

sin-1(4/6) = 41.80 

300

What is the area of this triangle? 

7 * 24 / 2 = 84 sq units

400

What does the inverse of Sin look like?

sin-1

400

How much is the side opposite of the 53.13angle?

4

400

Find the value of x for the following (to 1 decimal place)

x =  3.6

400

find the value of "theta" in this triangle (to 1 decimal place)

cos-1(2/3) = 48.2

400

What is the classification of a triangle with 2 equal sides?

ISOSCELES

500

What is the inverse of Cosine called?

ARCCOSINE

500

 How much is the adjacent side of the 36.87angle?

4

500

Find the value of x for the following (to 1 decimal place)

x = 7.5

500

Find the value of "theta" in this triangle (to the nearest degree)

cos-1(6/12) = 600

500

Find side x


x=4sqrt3 or 6.93

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