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Worksheets

Trig and Similar Triangles

Total questions: 26

Worksheet time: 54mins

Name
Class
Date
1.

Find the length of the missing side x...


Round your answer to 1 decimal place.

a)

8.3 cm

b)

16.7 cm

c)

11.8 cm

d)

8.4 cm

2.

Find the length of the missing side x...


Round your answer to 1 decimal place.

a)

3.8 cm

b)

28.8 cm

c)

3.9 cm

d)

3.6 cm

3.

Find the length of the missing side x...


Round your answer to 1 decimal place.

a)

5.7 cm

b)

5.8 cm

c)

17.1 cm

d)

8.6 cm

4.

Find the length of the missing side x...


Round your answer to 1 decimal place.

a)

10.3 cm

b)

10.2 cm

c)

17.5 cm

d)

8.6 cm

5.

Find the length of the missing side x...


Round your answer to 1 decimal place.

a)

8.7 cm

b)

10.2 cm

c)

12.3 cm

d)

8.6 cm

6.

What does 'O' stand for in Trigonometry?

a)

Opposite

b)

Adjacent

c)

Hypotenuse

d)

Origin

7.

What does the 'H' stand for in the topic Trigonometry

a)

Right-Angle

b)

Opposite

c)

Adjacent

d)

Hypotenuse

8.

What does the 'A' stand for in the topic Trigonometry

a)

Hypotenuse

b)

Adjacent

c)

Opposite

d)

Area

9.

Which trig ratio would you use for the following?

a)

Sin

b)

Cos

c)

Tan

d)

You would not be able to use trigonometry

10.

Which trig ratio would you use for the following?

a)

Sin

b)

Cos

c)

Tan

d)

You would not be able to use trigonometry

11.

What is the ratio for Sine?

a)

HO\frac{H}{O}

b)

OH\frac{O}{H}

c)

OA\frac{O}{A}

d)

AA\frac{A}{A}

12.

What is the ratio for Tan

a)

OA\frac{O}{A}

b)

AO\frac{A}{O}

c)

OH\frac{O}{H}

d)

HO\frac{H}{O}

13.

What is the ratio for Cosine?

a)

OH\frac{O}{H}

b)

OA\frac{O}{A}

c)

AO\frac{A}{O}

d)

AH\frac{A}{H}

14.
How do these triangles appear to be similar?
a)
AA
b)
SAS
c)
SSS
d)
Not Similar
15.
How do these triangles appear to be similar?
a)
AA
b)
SAS
c)
SSS
d)
Not Similar
16.
How do these triangles appear to be similar?
a)
AA
b)
SAS
c)
SSS
d)
Not Similar
17.
How do these triangles appear to be similar?
a)
AA
b)
SAS
c)
SSS
d)
Not Similar
18.
How do these triangles appear to be similar?
(Hint: Look for non-labeled parts!)
a)
AA
b)
SAS
c)
SSS
d)
Not Similar
19.
How do these triangles appear to be similar?
a)
AA
b)
SAS
c)
SSS
d)
Not Similar
20.
What is the measure of angle b?
a)
36o
b)
56o
c)
63o
d)
117o
21.
Sides in similar figures must be proportional.  
a)
True
b)
False 
22.
Matching angles are called
a)
Corresponding Sides
b)
Corresponding Angles
c)
The Same
d)
Congruent Angles
23.
Matching sides are called
a)
Corresponding Sides
b)
Corresponding Angles
c)
The Same
d)
Congruent Sides
24.
Complete each proportion.
CB / DM  =  AC / ?
a)
BM
b)
MA
c)
BC
d)
AD
25.

Complete each proportion.

AB / AM = ? / AD

a)

BC

b)

AC

c)

MD

d)

MC

26.

What is the scale factor from ΔABC to ΔDEF?

a)

1/2

b)

7/3

c)

2

d)

10/3

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