AnswersGeometryRight Triangle Relationships and Trigonometry

Practice Test Answers

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1
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Which is the best approximation for the measure of angle ABC ?

A
31.7 degrees
B
58.3 degrees
C
62.3 degrees
D
27.7 degrees
2
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What is the length of one leg of the triangle?

A
14 units
B
7 square root of 2 units
C
14 square root of 2 units
D
7 units
3

Which equation can be used to find the measure of angle LKJ ?

A
cosine inverse of open paren 8 point 9 over 10 point 9 close paren is equal to x
B
sine inverse of open paren 8 point 9 over 10 point 9 close paren is equal to x
C
cosine inverse of open paren 10 point 9 over 8 point 9 close paren is equal to x
D
sine inverse of open paren 10 point 9 over 8 point 9 close paren is equal to x
4

What is the length of line segment AC ? Round to the nearest tenth.

A
10 point 5 cm.
B
3 point 0 cm.
C
12 point 8 cm.
D
9 point 8 cm.
5

Given right triangle QRS , what is the value of sine of open paren 30 degrees close paren ?

A
1 half
B
the fraction with numerator square root of 3 and denominator 3
C
the fraction with numerator square root of 3 and denominator 2
D
2 over 1
6

What is the length of line segment BC ? Round to the nearest tenth.

A
21 point 3 in.
B
20 point 5 in.
C
22 point 6 in.
D
14 point 3 in.
7

What is the length of one leg of the triangle?

A
5 square root of 5
B
10 square root of 10
C
10 square root of 5
D
5 square root of 10
10

Which values for theta have the same reference angles?

A
pi over 6 , pi over 3 , 5 pi over 6
B
pi over 2 , 5 pi over 4 , 7 pi over 4
C
pi over 3 , 5 pi over 6 , 4 pi over 3
D
pi over 4 , 3 pi over 4 , 7 pi over 4

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