
Finding Missing Side Lengths
Presentation
•
Mathematics
•
9th Grade
•
Hard
Joseph Anderson
FREE Resource
5 Slides • 9 Questions
1
​
2
Multiple Choice
If I know the side lengths of two sides in a right triangle, I can find the length of the third side.
True
False
3
​
4
Fill in the Blanks
How many inches long is side AB?
Type answer...
5
6
Fill in the Blanks
How many inches long is side x?
Type answer...
7
8
Multiple Choice
If I know the side lengths of only one side in a right triangle, but I do know one of the acute angles, I can find the length of the two missing sides.
True
False
9
Multiple Select
Looking at reference angle B, which two sides are marked in the diagram?
opposite
adjacent
hypotenuse
70
10
Multiple Select
Looking at reference angle B, which two sides do "b" and "8" represent?
opposite
adjacent
hypotenuse
25
11
Multiple Choice
Let's focus on these two:
Opposite = b
Adjacent = 8
Which trig ratio uses these two sides?
sine
cosine
tangent
cotangent
12
Multiple Choice
Yes, it is the tangent!
Which ratio shows the relationship in the diagram?
tan(25) = b/8
tan(25) = 8/b
tan(8) = b/25
tan(b) = 8/25
13
14
Multiple Select
Looking at reference angle B, which two sides do "c" and "8" represent?
opposite
adjacent
hypotenuse
25
​
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