Solving for Side Lengths of Right Triangles Answers
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Right triangle ABC is shown.
A
sin(50o) =
B
sin(50o) =
C
cos(50o) =D
cos(50o) =2
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A ramp leading into a building makes a 15° angle with the ground. The end of the ramp is 10 feet from the base of the building (along the ground).Approximately how long is the ramp? Round to the nearest tenth.
A
10.3 feetB
10.4 feetC
13.2 feetD
38.6 feet3
Which relationship in the triangle must be true?
A
sin(B) = sin(A)B
sin(B) = cos(90 – B)C
cos(B) = sin(180 – B)D
cos(B) = cos(A)5
The equation can be used to determine the length of line segment AC.
A
11.8 cmB
12.9 cmC
14.9 cmD
15.3 cm6
Which equation can be used to solve for b?
A
b = (8)tan(30o)B
b =
C
b = (8)sin(30o)D
b =
7
A right triangle has a 30o angle. The leg adjacent to the 30o angle measures 25 inches.What is the length of the other leg? Round to the nearest tenth.
A
14.4 in.B
21.7 in.C
28.9 in.D
43.3 in.9
Which equation can be used to solve for c?
A
c = (5)cos(35o)B
c =
C
c = (5)sin(35o)D
c =
10
Which equation can be solved to find one of the missing side lengths in the triangle?
A
cos(60o) =
B
cos(60o) =
C
cos(60o) =
D
cos(60o) =
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