AnswersCMS 2026-2027 NC Math 2 CREDIT RECOVERYRight Triangle Trigonometry

Practice Test Answers

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1
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Which triangle is similar to triangle JKL ?

A
triangle LJK
B
triangle JKM
C
triangle MKL
D
triangle KML
2
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What is the length of one leg of the triangle?

A
10 square root of 10
B
10 square root of 5
C
5 square root of 5
D
5 square root of 10
3

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

A
2 over 1
B
the fraction with numerator square root of 3 and denominator 2
C
1 half
D
the fraction with numerator square root of 3 and denominator 3
4

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

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

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 10 point 9 over 8 point 9 close paren is equal to x
C
sine inverse of open paren 8 point 9 over 10 point 9 close paren is equal to x
D
cosine inverse of open paren 10 point 9 over 8 point 9 close paren is equal to x
6

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

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

What is the length of one leg of the triangle?

A
7 units
B
7 square root of 2 units
C
14 units
D
14 square root of 2 units
8

What is the value of x ?

A
15 units
B
12 units
C
24 units
D
20 units
9

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

A
58.3 degrees
B
27.7 degrees
C
62.3 degrees
D
31.7 degrees
10

Given right triangle RST , what is the value of sine of cap s ?

A
5 over 12
B
5 over 13
C
12 over 13
D
13 over 12

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