# Unit 5/8 Test

23 Questions | Total Attempts: 118

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• 1.
A) Write three (3) personal individual goals. Be specific. B) What kind of classwork activity would you like or what kind of group activity would you suggest for next six weeks?
• 2.
In the following triangle, what is sin A = ?
• A.

5/12

• B.

12/5

• C.

5/13

• D.

12/13

• 3.
Which equation would best help solve for x?
• A.

Sin 25 = x/48

• B.

Cos 25 = x/48

• C.

Tan 25 = x/48

• D.

Tan 25 = 48/x

• 4.
In a right angle triangle ABC, AB = 12 m, angle ABC = 90 degrees and angle BAC = 60 degrees. The length of side AC is
• A.

6 cm

• B.

24 cm

• C.

10.4 cm

• D.

16.5 cm

• 5.
One end of  a piece of wire 14 m long is attached to the top of a vertical pole and the other end is attached to the ground at an angle of 70 degrees to the ground.  What is the height of the pole?
• A.

4.8 m

• B.

14.9 cm

• C.

13.2 m

• D.

38.5 m

• 6.
Find the unknown side length.  Round answer to the nearest hundredth if necessary.
• A.

11.70 m

• B.

137 m

• C.

105 m

• D.

10.25 m

• 7.
If a = 7 and c = 25, b = ?
• A.

18

• B.

24

• C.

26

• D.

32

• 8.
If  b = 15 and c = 24, a = ?   (Round answer to the tenth)
• A.

28.3

• B.

18.7

• C.

9

• D.

39

• 9.
A triangle with sides length of 16, 30, and 34 units is a right triangle.
• A.

True

• B.

False

• 10.
A triangle with sides length of 7, 24, and 25 units is a right triangle.
• A.

True

• B.

False

• 11.
Find x.
• A.

2

• B.

4

• C.

Cannot be determined from information.

• 12.
Find x.
• A.

7 * sqrt(3)

• B.

7

• C.

7 * sqrt(2)

• 13.
What is the definition of "sine"?
• A.

• B.

• C.

Opposite/Hypotenuse

• D.

• 14.
What is the definition of "cosine"?
• A.

• B.

• C.

Hypotenuse/opposite

• D.

• 15.
What is the definition of  "tangent"?
• A.

• B.

Hypotenuse/opposite

• C.

• D.

• 16.
From the top of a lighthouse 210 feet high, the angle of depression of a boat is 27°. Find the distance from the boat to the foot of the lighthouse. The lighthouse was built at sea level.
• A.

107 ft

• B.

207 ft

• C.

187 ft

• D.

210 ft

• 17.
Evaluate x if tan x = 2.45(answer correct to 1 decimal place)
• A.

67.8°

• B.

67.7°

• C.

1.2°

• D.

1.1°

• E.

75.3°

• 18.
Cos 23 = (answer correct to 2 decimal places)
• A.

0.935

• B.

0.94

• C.

0.921

• D.

0.92

• E.

-0.53

• 19.
Tan 74o = (answer to 1 decimal place)
• A.

-5.7

• B.

3.4

• C.

3.5

• D.

2.3

• 20.
Evaluate x if cos x =0.156(correct to the neearest degree)
• A.

81°

• B.

• C.

90°

• 21.
Name (First and Last)
• 22.
In the diagram below, buildings P and Q are 50m apart. The angle of elevation of T from R is 53° and the angle of depression of V from R is 41°. Determine the height TV of building Q?
• A.

95.3m

• B.

73.6m

• C.

110m

• D.

83.4m

• 23.
If the side lengths of a triangle are 7, 6, and 9, the triangle is _____.
• A.

Obtuse

• B.

Right

• C.

Acute

• D.

Cannot be formed

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