AnswersRMA FL-1206310-Geometry Semester 2Special Right Triangles

Week 10: Solving for Side Lengths of Right Triangles Answers

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1
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What is the length of ? Round to the nearest tenth.

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A
6.8 cm
B
7.5 cm
C
14.5 cm
D
17.7 cm
2
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Which relationship in the triangle must be true?

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A
sin(B) = sin(A)
B
sin(B) = cos(90 – B)
C
cos(B) = sin(180 – B)
D
cos(B) = cos(A)
3

Which equation can be used to solve for c?

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A
c = (5)cos(35o)
B
c =
Option B
C
c = (5)sin(35o)
D
c =
Option D
4

Find the length of . Use that length to find the length of .

Question illustration
A
2.3 cm
B
4.0 cm
C
10.7 cm
D
18.6 cm
5

What is the approximate value of x? Round to the nearest tenth.

Question illustration
A
3.1 cm
B
3.9 cm
C
4.6 cm
D
5.4 cm

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