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SOHCAHTOA

Total questions: 25

Worksheet time: 53mins

Name
Class
Date
1.

What is the acronym to help you remember the ratios to use in trigonometry?

a)

RIGHTANG

b)

SOHCAHTOA

c)

SHOCHATOA

d)

SAHCOHTOA

2.

What type of triangles do you use the trig ratios with?

a)

any type

b)

right triangles

c)

obtuse triangles

d)

acute triangles

3.
 Find cosA
a)
30/16
b)
30/34
c)
30/15
d)
16/34
4.
 FInd tanX
a)
32/40
b)
40/24
c)
32/24
d)
24/32
5.
 Find sinA
a)
32/40
b)
32/24
c)
24/40
d)
24/32
6.
 Find cosC
a)
16/34
b)
16/30
c)
30/34
d)
34/16
7.
 Find tanZ
a)
35/21
b)
21/28
c)
35/28
d)
28/21
8.
 Find sinC
a)
21/35
b)
28/21
c)
35/28
d)
28/35
9.

What does CAH stand for

a)

cosine is the adjective over the hypotenuse.

b)

cosine is the adjacent side over the hypotenuse side.

c)

cosine is the adjacent side over the hippopotamus.

d)

cosine is the hypotenuse side over the adjacent side.

10.
What does SOH stand for
a)
hypotenuse over opposite
b)
adjacent over opposite
opposite over adjacent
c)
opposite over hypotenuse
d)
adjacent over adjacent
11.
What is the side across from the right angle called?
a)
Leg
b)
Pythagoras
c)
Hypotenuse
d)
Altitude
12.
Which trig function would you use with this diagram?
a)
Sin
b)
Cos
c)
Tan
d)
Wha??
13.

Which Trig function would you use to solve this problem?

a)

Sine

b)

Cosine

c)

Tangent

d)

Pythagorean Theorem

14.

Use a calculator to find sin 45.

a)

.707

b)

1

c)

.809

d)

1.4

15.

Use a calculator to find the cos 70.

a)

.12

b)

2.7

c)

.94

d)

.34

16.

Use the calculator to find tan 60

a)

.87

b)

1.7

c)

.5

d)

.11

17.

Use a calculator to find cos 0

a)

4

b)

3

c)

2

d)

1

18.

Use a calculator to find sin 100

a)

.98

b)

.17

c)

-5.6

d)

.76

19.
What is the ratio for tangent?
a)
O/A
b)
A/O
c)
A/H
d)
O/H
20.
What is the ratio for sine?
a)
O/H
b)
H/A
c)
H/O
d)
O/A
21.
What is the ratio for cosine?
a)
H/A
b)
O/A
c)
A/H
d)
A/O
22.

How do you know which side is the OPPOSITE?

a)

It is next to the right angle

b)

It is opposite the right angle

c)

It is across from the angle

d)

It is the bottom leg of the triangle

23.
If you are given the opposite side and hypotenuse, which trig function should you use?
a)
sine
b)
cosine
c)
tangent
d)
cotangent
24.
If you are given the hypotenuse and an adjacent side, which trig function should you use?
a)
sine
b)
cosine
c)
tangent
d)
cotangent
25.
If you are given the hypotenuse and an adjacent side, which trig function should you use?
a)
sine
b)
cosine
c)
tangent
d)
cotangent