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Problem Num : 21 Type: Understanding Section:Trigonometry  Theme:None Adjustment# : 0 Difficulty: 2
Category	Trigonometric ratio
Analysis	I want you to ask if this is possible to get an answer or not. For instance, the ratio BC/AC is fixed. However, the length of BC and AC can be changed.
Solution/Answer	Area of a triangle is decided by the base and height. We also know the tan ratio is related to the base and height. Tan 38= BC/AC and 1/2 AC*BC =15 Answer: c

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Problem Num : 22 Type: None Section:Trigonometry  Theme:None Adjustment# : 0 Difficulty: 1
Category	Trigonometric ratio
Analysis
Solution/Answer	Answer:

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Problem Num : 23 Type: None Section:Trigonometry  Theme:None Adjustment# : 1 Difficulty: 1
Category	Trigonometric ratio
Analysis
Solution/Answer	'' Answer: b

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Problem Num : 24 Type: None Section:Trigonometry  Theme:None Adjustment# : 1 Difficulty: 1
Category	Trigonometric ratio
Analysis
Solution/Answer	Answer: b

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Problem Num : 25 Type: None Section:Trigonometry  Theme:None Adjustment# : 2 Difficulty: 1
Category	Trigonometric ratio
Analysis
Solution/Answer	Answer:

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Problem Num : 26 Type: None Section:Trigonometry  Theme:None Adjustment# : 7 Difficulty: 1
Category	Trigonometric ratio
Analysis
Solution/Answer	Answer:

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Problem Num : 27 Type: None Section:Trigonometry  Theme:None Adjustment# : 10 Difficulty: 3
Category	Trigonometric ratio
Analysis
Solution/Answer	Answer:

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Array ( [0] => 4074 [1] => 3834 [2] => 3949 [3] => 3780 [4] => 3858 [5] => 3959 [6] => 3872 ) 271  2  3