Solving for Side Lengths of Right Triangles Answers
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1
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Which equation could be used to solve for the length of XY?
A
XY = (22)sin(41°)B
XY = (22)cos(41°)C
XY =
D
XY =
2
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3
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4
The measure of angle A is 15°, and the length of side BC is 8. What are the lengths of the other two sides, rounded to the nearest tenth? AC = AB =
Answers:
Selection 1:29.9
Selection 2:30.9
5
A 25-foot long ladder is propped against a wall at an angle of 18° with the wall. Which diagram correctly represents this scenario?
A
[Image: A ladder is propped against a 25 foot tall wall. T...]
B
[Image: A 25 foot ladder is propped against a wall forming...]
C
[Image: A ladder is propped against a wall forming an 18 d...]
D
[Image: A 25 foot ladder is propped against a wall. The an...]
6
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8
Which error did Kevin make?
A
He has the side lengths in the wrong place in the cosine ratio.B
He multiplied both sides by the length of XZ instead of dividing by XZ.C
He should have used the sine ratio.D
He should have used the tangent ratio.9
Which equations could be used to solve for the unknown lengths of △ABC? Check all that apply.
A
sin(45°) =
B
sin(45°) =
C
9 tan(45°) = ACD
(AC)sin(45°) = BCE
cos(45°) =10
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